./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5643166a994eeb2bd259cf18f0a4b43a93b8e6b433c116ad537f0a1a02a75ec3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:41:33,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:41:33,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:41:33,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:41:33,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:41:33,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:41:33,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:41:33,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:41:33,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:41:33,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:41:33,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:41:33,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:41:33,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:41:33,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:41:33,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:41:33,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:41:33,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:41:33,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:41:33,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:41:33,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:41:33,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:41:33,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:41:33,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:41:33,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:41:33,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:41:33,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:41:33,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:41:33,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:41:33,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:41:33,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:41:33,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:41:33,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:41:33,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:41:33,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:41:33,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:41:33,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:41:33,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:41:33,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:41:33,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:41:33,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:41:33,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:41:33,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:41:33,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:41:33,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:41:33,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:41:33,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:41:33,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:41:33,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:41:33,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:41:33,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:41:33,887 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:41:33,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:41:33,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:41:33,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:41:33,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:41:33,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:41:33,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:41:33,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:41:33,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:41:33,889 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:41:33,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:41:33,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:41:33,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:41:33,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:41:33,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:41:33,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:41:33,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:41:33,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:41:33,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:41:33,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:41:33,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:41:33,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:41:33,890 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:41:33,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:41:33,890 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:41:33,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:41:33,891 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:41:33,891 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5643166a994eeb2bd259cf18f0a4b43a93b8e6b433c116ad537f0a1a02a75ec3 [2022-12-13 11:41:34,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:41:34,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:41:34,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:41:34,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:41:34,079 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:41:34,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c [2022-12-13 11:41:36,704 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:41:36,951 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:41:36,951 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c [2022-12-13 11:41:36,967 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/data/ef8fdc525/3a4f59cfc5b745de967949351596e2b8/FLAGe57419b76 [2022-12-13 11:41:36,979 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/data/ef8fdc525/3a4f59cfc5b745de967949351596e2b8 [2022-12-13 11:41:36,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:41:36,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:41:36,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:41:36,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:41:36,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:41:36,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:41:36" (1/1) ... [2022-12-13 11:41:36,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3ef0e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:36, skipping insertion in model container [2022-12-13 11:41:36,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:41:36" (1/1) ... [2022-12-13 11:41:36,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:41:37,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:41:37,370 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c[49225,49238] [2022-12-13 11:41:37,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:41:37,425 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:41:37,503 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c[49225,49238] [2022-12-13 11:41:37,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:41:37,547 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:41:37,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37 WrapperNode [2022-12-13 11:41:37,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:41:37,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:41:37,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:41:37,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:41:37,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,633 INFO L138 Inliner]: procedures = 91, calls = 333, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 1051 [2022-12-13 11:41:37,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:41:37,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:41:37,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:41:37,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:41:37,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:41:37,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:41:37,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:41:37,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:41:37,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (1/1) ... [2022-12-13 11:41:37,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:41:37,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:41:37,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:41:37,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:41:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:41:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-12-13 11:41:37,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-12-13 11:41:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-12-13 11:41:37,763 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-12-13 11:41:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2022-12-13 11:41:37,764 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2022-12-13 11:41:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-12-13 11:41:37,764 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-12-13 11:41:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-12-13 11:41:37,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-12-13 11:41:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-12-13 11:41:37,764 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-12-13 11:41:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-12-13 11:41:37,765 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-12-13 11:41:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-12-13 11:41:37,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-12-13 11:41:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 11:41:37,765 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 11:41:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 11:41:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 11:41:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-12-13 11:41:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-12-13 11:41:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-12-13 11:41:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-12-13 11:41:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-12-13 11:41:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-12-13 11:41:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-12-13 11:41:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-12-13 11:41:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-12-13 11:41:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-12-13 11:41:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-12-13 11:41:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-12-13 11:41:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-12-13 11:41:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-12-13 11:41:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-12-13 11:41:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-12-13 11:41:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-12-13 11:41:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-12-13 11:41:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:41:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-12-13 11:41:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-12-13 11:41:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-12-13 11:41:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-12-13 11:41:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-12-13 11:41:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-12-13 11:41:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:41:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:41:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-12-13 11:41:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-12-13 11:41:37,882 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:41:37,884 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:41:38,641 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:41:38,653 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:41:38,653 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:41:38,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:41:38 BoogieIcfgContainer [2022-12-13 11:41:38,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:41:38,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:41:38,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:41:38,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:41:38,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:41:36" (1/3) ... [2022-12-13 11:41:38,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49799786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:41:38, skipping insertion in model container [2022-12-13 11:41:38,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:37" (2/3) ... [2022-12-13 11:41:38,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49799786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:41:38, skipping insertion in model container [2022-12-13 11:41:38,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:41:38" (3/3) ... [2022-12-13 11:41:38,663 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product19.cil.c [2022-12-13 11:41:38,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:41:38,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:41:38,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:41:38,736 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=PETRI_NET, 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;@3abcd82a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:41:38,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:41:38,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 532 states, 414 states have (on average 1.6763285024154588) internal successors, (694), 430 states have internal predecessors, (694), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2022-12-13 11:41:38,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 11:41:38,764 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:38,765 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:38,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:41:38,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:38,771 INFO L85 PathProgramCache]: Analyzing trace with hash 124463842, now seen corresponding path program 1 times [2022-12-13 11:41:38,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:38,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32273275] [2022-12-13 11:41:38,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:38,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:41:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:41:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:41:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 11:41:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 11:41:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 11:41:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:41:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:41:39,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:39,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32273275] [2022-12-13 11:41:39,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32273275] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:39,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:39,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:41:39,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655101617] [2022-12-13 11:41:39,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:39,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:41:39,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:39,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:41:39,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:41:39,369 INFO L87 Difference]: Start difference. First operand has 532 states, 414 states have (on average 1.6763285024154588) internal successors, (694), 430 states have internal predecessors, (694), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:41:42,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:42,760 INFO L93 Difference]: Finished difference Result 1261 states and 2116 transitions. [2022-12-13 11:41:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:41:42,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2022-12-13 11:41:42,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:42,778 INFO L225 Difference]: With dead ends: 1261 [2022-12-13 11:41:42,778 INFO L226 Difference]: Without dead ends: 725 [2022-12-13 11:41:42,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:41:42,788 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1333 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:42,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 1248 Invalid, 2865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [411 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 11:41:42,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-12-13 11:41:42,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2022-12-13 11:41:42,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 410 states have (on average 1.6658536585365853) internal successors, (683), 425 states have internal predecessors, (683), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2022-12-13 11:41:42,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 868 transitions. [2022-12-13 11:41:42,950 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 868 transitions. Word has length 101 [2022-12-13 11:41:42,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:42,951 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 868 transitions. [2022-12-13 11:41:42,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:41:42,951 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 868 transitions. [2022-12-13 11:41:42,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-13 11:41:42,956 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:42,956 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:42,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:41:42,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:41:42,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:42,958 INFO L85 PathProgramCache]: Analyzing trace with hash -641430685, now seen corresponding path program 1 times [2022-12-13 11:41:42,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:42,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479939913] [2022-12-13 11:41:42,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:42,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:41:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 11:41:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 11:41:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 11:41:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:41:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 11:41:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 11:41:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:41:43,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:43,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479939913] [2022-12-13 11:41:43,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479939913] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:43,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:43,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:41:43,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377849573] [2022-12-13 11:41:43,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:43,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:41:43,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:43,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:41:43,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:41:43,226 INFO L87 Difference]: Start difference. First operand 527 states and 868 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:41:46,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:46,279 INFO L93 Difference]: Finished difference Result 1235 states and 2043 transitions. [2022-12-13 11:41:46,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:41:46,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2022-12-13 11:41:46,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:46,282 INFO L225 Difference]: With dead ends: 1235 [2022-12-13 11:41:46,283 INFO L226 Difference]: Without dead ends: 725 [2022-12-13 11:41:46,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:41:46,285 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 1308 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2444 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 2444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:46,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 1206 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 2444 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-13 11:41:46,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-12-13 11:41:46,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2022-12-13 11:41:46,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 410 states have (on average 1.6634146341463414) internal successors, (682), 425 states have internal predecessors, (682), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2022-12-13 11:41:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 867 transitions. [2022-12-13 11:41:46,348 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 867 transitions. Word has length 102 [2022-12-13 11:41:46,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:46,348 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 867 transitions. [2022-12-13 11:41:46,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:41:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 867 transitions. [2022-12-13 11:41:46,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 11:41:46,350 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:46,350 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:46,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:41:46,351 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:41:46,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:46,351 INFO L85 PathProgramCache]: Analyzing trace with hash 844801918, now seen corresponding path program 1 times [2022-12-13 11:41:46,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:46,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191773417] [2022-12-13 11:41:46,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:46,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:41:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 11:41:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 11:41:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 11:41:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 11:41:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 11:41:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 11:41:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 11:41:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:46,577 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:41:46,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:46,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191773417] [2022-12-13 11:41:46,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191773417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:46,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:46,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:41:46,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020394778] [2022-12-13 11:41:46,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:46,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:41:46,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:46,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:41:46,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:41:46,580 INFO L87 Difference]: Start difference. First operand 527 states and 867 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:41:50,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:50,182 INFO L93 Difference]: Finished difference Result 1235 states and 2042 transitions. [2022-12-13 11:41:50,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:41:50,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2022-12-13 11:41:50,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:50,186 INFO L225 Difference]: With dead ends: 1235 [2022-12-13 11:41:50,186 INFO L226 Difference]: Without dead ends: 725 [2022-12-13 11:41:50,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:41:50,188 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1298 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 2449 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 2858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 2449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:50,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 1230 Invalid, 2858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 2449 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-13 11:41:50,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-12-13 11:41:50,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2022-12-13 11:41:50,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 410 states have (on average 1.6609756097560975) internal successors, (681), 425 states have internal predecessors, (681), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2022-12-13 11:41:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 866 transitions. [2022-12-13 11:41:50,253 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 866 transitions. Word has length 103 [2022-12-13 11:41:50,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:50,254 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 866 transitions. [2022-12-13 11:41:50,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:41:50,254 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 866 transitions. [2022-12-13 11:41:50,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 11:41:50,256 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:50,256 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:50,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:41:50,256 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:41:50,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:50,257 INFO L85 PathProgramCache]: Analyzing trace with hash -867468481, now seen corresponding path program 1 times [2022-12-13 11:41:50,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:50,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448277048] [2022-12-13 11:41:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:50,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:41:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 11:41:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:41:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 11:41:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 11:41:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 11:41:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:41:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 11:41:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:41:50,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:50,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448277048] [2022-12-13 11:41:50,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448277048] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:50,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:50,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:41:50,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714714375] [2022-12-13 11:41:50,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:50,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:41:50,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:50,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:41:50,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:41:50,437 INFO L87 Difference]: Start difference. First operand 527 states and 866 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:41:53,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:53,850 INFO L93 Difference]: Finished difference Result 1235 states and 2041 transitions. [2022-12-13 11:41:53,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:41:53,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2022-12-13 11:41:53,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:53,855 INFO L225 Difference]: With dead ends: 1235 [2022-12-13 11:41:53,855 INFO L226 Difference]: Without dead ends: 725 [2022-12-13 11:41:53,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:41:53,858 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 1299 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 2853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:53,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 1217 Invalid, 2853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 2442 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 11:41:53,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-12-13 11:41:53,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2022-12-13 11:41:53,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 410 states have (on average 1.6585365853658536) internal successors, (680), 425 states have internal predecessors, (680), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2022-12-13 11:41:53,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 865 transitions. [2022-12-13 11:41:53,935 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 865 transitions. Word has length 104 [2022-12-13 11:41:53,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:53,935 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 865 transitions. [2022-12-13 11:41:53,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:41:53,936 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 865 transitions. [2022-12-13 11:41:53,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-13 11:41:53,938 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:53,939 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:53,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:41:53,939 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:41:53,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:53,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1345883162, now seen corresponding path program 1 times [2022-12-13 11:41:53,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:53,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025578425] [2022-12-13 11:41:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:53,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:41:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 11:41:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 11:41:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 11:41:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 11:41:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 11:41:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 11:41:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 11:41:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:41:54,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:54,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025578425] [2022-12-13 11:41:54,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025578425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:54,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:54,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:41:54,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872152997] [2022-12-13 11:41:54,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:54,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:41:54,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:54,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:41:54,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:41:54,106 INFO L87 Difference]: Start difference. First operand 527 states and 865 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:41:56,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:56,979 INFO L93 Difference]: Finished difference Result 1235 states and 2040 transitions. [2022-12-13 11:41:56,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:41:56,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2022-12-13 11:41:56,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:56,982 INFO L225 Difference]: With dead ends: 1235 [2022-12-13 11:41:56,982 INFO L226 Difference]: Without dead ends: 725 [2022-12-13 11:41:56,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:41:56,984 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 1295 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 2854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:56,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1212 Invalid, 2854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 11:41:56,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-12-13 11:41:57,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2022-12-13 11:41:57,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 410 states have (on average 1.6560975609756097) internal successors, (679), 425 states have internal predecessors, (679), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2022-12-13 11:41:57,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 864 transitions. [2022-12-13 11:41:57,054 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 864 transitions. Word has length 105 [2022-12-13 11:41:57,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:57,054 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 864 transitions. [2022-12-13 11:41:57,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:41:57,055 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 864 transitions. [2022-12-13 11:41:57,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-13 11:41:57,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:57,056 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:57,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:41:57,057 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:41:57,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:57,057 INFO L85 PathProgramCache]: Analyzing trace with hash 699466523, now seen corresponding path program 1 times [2022-12-13 11:41:57,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:57,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997143811] [2022-12-13 11:41:57,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:57,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:41:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:41:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 11:41:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:41:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:41:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:41:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 11:41:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:41:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 11:41:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:41:57,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:57,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997143811] [2022-12-13 11:41:57,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997143811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:57,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:57,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:41:57,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389698247] [2022-12-13 11:41:57,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:57,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:41:57,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:57,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:41:57,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:41:57,278 INFO L87 Difference]: Start difference. First operand 527 states and 864 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 11:42:00,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:00,968 INFO L93 Difference]: Finished difference Result 1257 states and 2076 transitions. [2022-12-13 11:42:00,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 11:42:00,969 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2022-12-13 11:42:00,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:00,971 INFO L225 Difference]: With dead ends: 1257 [2022-12-13 11:42:00,971 INFO L226 Difference]: Without dead ends: 751 [2022-12-13 11:42:00,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-12-13 11:42:00,973 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 1420 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 4690 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 5109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 4690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:00,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 2255 Invalid, 5109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 4690 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 11:42:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-12-13 11:42:01,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 540. [2022-12-13 11:42:01,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 420 states have (on average 1.6523809523809523) internal successors, (694), 437 states have internal predecessors, (694), 94 states have call successors, (94), 24 states have call predecessors, (94), 25 states have return successors, (96), 91 states have call predecessors, (96), 93 states have call successors, (96) [2022-12-13 11:42:01,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 884 transitions. [2022-12-13 11:42:01,038 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 884 transitions. Word has length 106 [2022-12-13 11:42:01,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:01,039 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 884 transitions. [2022-12-13 11:42:01,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 11:42:01,039 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 884 transitions. [2022-12-13 11:42:01,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-13 11:42:01,041 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:01,041 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:01,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:42:01,041 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:01,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:01,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1637998138, now seen corresponding path program 1 times [2022-12-13 11:42:01,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:01,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344074131] [2022-12-13 11:42:01,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:01,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 11:42:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:42:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:42:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:42:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 11:42:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 11:42:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:01,201 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:42:01,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:01,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344074131] [2022-12-13 11:42:01,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344074131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:01,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:42:01,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:42:01,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035294597] [2022-12-13 11:42:01,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:01,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:42:01,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:01,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:42:01,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:42:01,203 INFO L87 Difference]: Start difference. First operand 540 states and 884 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:04,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:04,250 INFO L93 Difference]: Finished difference Result 1300 states and 2149 transitions. [2022-12-13 11:42:04,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 11:42:04,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2022-12-13 11:42:04,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:04,253 INFO L225 Difference]: With dead ends: 1300 [2022-12-13 11:42:04,253 INFO L226 Difference]: Without dead ends: 785 [2022-12-13 11:42:04,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:42:04,255 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1409 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 2802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:04,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1242 Invalid, 2802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 11:42:04,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-12-13 11:42:04,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 560. [2022-12-13 11:42:04,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 439 states have (on average 1.6469248291571754) internal successors, (723), 456 states have internal predecessors, (723), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2022-12-13 11:42:04,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 912 transitions. [2022-12-13 11:42:04,333 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 912 transitions. Word has length 106 [2022-12-13 11:42:04,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:04,334 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 912 transitions. [2022-12-13 11:42:04,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:04,334 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 912 transitions. [2022-12-13 11:42:04,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-13 11:42:04,336 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:04,336 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:04,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:42:04,336 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:04,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:04,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1886215444, now seen corresponding path program 1 times [2022-12-13 11:42:04,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:04,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817173070] [2022-12-13 11:42:04,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:04,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:42:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 11:42:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 11:42:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:42:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 11:42:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 11:42:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:42:04,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:04,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817173070] [2022-12-13 11:42:04,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817173070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:04,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:42:04,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:42:04,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358957556] [2022-12-13 11:42:04,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:04,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:42:04,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:04,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:42:04,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:42:04,512 INFO L87 Difference]: Start difference. First operand 560 states and 912 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:07,735 INFO L93 Difference]: Finished difference Result 1275 states and 2084 transitions. [2022-12-13 11:42:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:42:07,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2022-12-13 11:42:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:07,741 INFO L225 Difference]: With dead ends: 1275 [2022-12-13 11:42:07,741 INFO L226 Difference]: Without dead ends: 776 [2022-12-13 11:42:07,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:42:07,744 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1375 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:07,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 1228 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-13 11:42:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-12-13 11:42:07,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 560. [2022-12-13 11:42:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 439 states have (on average 1.6355353075170842) internal successors, (718), 456 states have internal predecessors, (718), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2022-12-13 11:42:07,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 907 transitions. [2022-12-13 11:42:07,871 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 907 transitions. Word has length 107 [2022-12-13 11:42:07,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:07,871 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 907 transitions. [2022-12-13 11:42:07,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:07,872 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 907 transitions. [2022-12-13 11:42:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-13 11:42:07,875 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:07,875 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:07,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:42:07,876 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:07,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1696970047, now seen corresponding path program 1 times [2022-12-13 11:42:07,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:07,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207348009] [2022-12-13 11:42:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:07,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:07,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 11:42:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 11:42:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 11:42:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 11:42:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 11:42:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:08,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:42:08,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:08,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207348009] [2022-12-13 11:42:08,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207348009] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:08,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:42:08,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:42:08,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952094609] [2022-12-13 11:42:08,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:08,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:42:08,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:08,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:42:08,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:42:08,068 INFO L87 Difference]: Start difference. First operand 560 states and 907 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:10,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:10,774 INFO L93 Difference]: Finished difference Result 1275 states and 2079 transitions. [2022-12-13 11:42:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:42:10,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2022-12-13 11:42:10,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:10,777 INFO L225 Difference]: With dead ends: 1275 [2022-12-13 11:42:10,777 INFO L226 Difference]: Without dead ends: 776 [2022-12-13 11:42:10,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:42:10,779 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1360 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:10,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 1241 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 2356 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 11:42:10,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-12-13 11:42:10,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 560. [2022-12-13 11:42:10,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 439 states have (on average 1.6241457858769932) internal successors, (713), 456 states have internal predecessors, (713), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2022-12-13 11:42:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 902 transitions. [2022-12-13 11:42:10,848 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 902 transitions. Word has length 108 [2022-12-13 11:42:10,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:10,848 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 902 transitions. [2022-12-13 11:42:10,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:10,848 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 902 transitions. [2022-12-13 11:42:10,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-13 11:42:10,849 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:10,850 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:10,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 11:42:10,850 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:10,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:10,850 INFO L85 PathProgramCache]: Analyzing trace with hash -3668175, now seen corresponding path program 1 times [2022-12-13 11:42:10,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:10,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580127718] [2022-12-13 11:42:10,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:10,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 11:42:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 11:42:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 11:42:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 11:42:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 11:42:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:42:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:42:11,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:11,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580127718] [2022-12-13 11:42:11,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580127718] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:11,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:42:11,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:42:11,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198796460] [2022-12-13 11:42:11,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:11,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:42:11,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:11,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:42:11,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:42:11,072 INFO L87 Difference]: Start difference. First operand 560 states and 902 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 11:42:14,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:14,906 INFO L93 Difference]: Finished difference Result 1279 states and 2075 transitions. [2022-12-13 11:42:14,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:42:14,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 109 [2022-12-13 11:42:14,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:14,909 INFO L225 Difference]: With dead ends: 1279 [2022-12-13 11:42:14,909 INFO L226 Difference]: Without dead ends: 795 [2022-12-13 11:42:14,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-12-13 11:42:14,911 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 1357 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 4665 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 5083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 4665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:14,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 2247 Invalid, 5083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 4665 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 11:42:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-12-13 11:42:14,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 562. [2022-12-13 11:42:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 441 states have (on average 1.619047619047619) internal successors, (714), 458 states have internal predecessors, (714), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2022-12-13 11:42:14,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 903 transitions. [2022-12-13 11:42:14,987 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 903 transitions. Word has length 109 [2022-12-13 11:42:14,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:14,987 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 903 transitions. [2022-12-13 11:42:14,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 11:42:14,987 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 903 transitions. [2022-12-13 11:42:14,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-13 11:42:14,989 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:14,989 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:14,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 11:42:14,989 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:14,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:14,990 INFO L85 PathProgramCache]: Analyzing trace with hash -2023739887, now seen corresponding path program 1 times [2022-12-13 11:42:14,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:14,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248462654] [2022-12-13 11:42:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:14,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 11:42:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 11:42:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 11:42:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 11:42:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 11:42:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:42:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:15,154 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:42:15,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:15,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248462654] [2022-12-13 11:42:15,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248462654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:15,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:42:15,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:42:15,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001875424] [2022-12-13 11:42:15,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:15,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:42:15,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:15,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:42:15,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:42:15,156 INFO L87 Difference]: Start difference. First operand 562 states and 903 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:17,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:17,868 INFO L93 Difference]: Finished difference Result 1279 states and 2074 transitions. [2022-12-13 11:42:17,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:42:17,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2022-12-13 11:42:17,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:17,871 INFO L225 Difference]: With dead ends: 1279 [2022-12-13 11:42:17,871 INFO L226 Difference]: Without dead ends: 778 [2022-12-13 11:42:17,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:42:17,872 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 1361 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:17,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 1204 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 11:42:17,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-12-13 11:42:17,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 562. [2022-12-13 11:42:17,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 441 states have (on average 1.6077097505668934) internal successors, (709), 458 states have internal predecessors, (709), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2022-12-13 11:42:17,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 898 transitions. [2022-12-13 11:42:17,986 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 898 transitions. Word has length 109 [2022-12-13 11:42:17,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:17,987 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 898 transitions. [2022-12-13 11:42:17,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:17,987 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 898 transitions. [2022-12-13 11:42:17,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-13 11:42:17,989 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:17,989 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:17,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 11:42:17,989 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:17,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1371738274, now seen corresponding path program 1 times [2022-12-13 11:42:17,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:17,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017870192] [2022-12-13 11:42:17,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:17,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:42:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 11:42:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 11:42:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 11:42:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:42:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:42:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:18,207 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:42:18,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:18,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017870192] [2022-12-13 11:42:18,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017870192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:18,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:42:18,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:42:18,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305994911] [2022-12-13 11:42:18,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:18,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:42:18,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:18,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:42:18,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:42:18,209 INFO L87 Difference]: Start difference. First operand 562 states and 898 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 11:42:22,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:22,211 INFO L93 Difference]: Finished difference Result 1304 states and 2102 transitions. [2022-12-13 11:42:22,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:42:22,212 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 110 [2022-12-13 11:42:22,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:22,214 INFO L225 Difference]: With dead ends: 1304 [2022-12-13 11:42:22,215 INFO L226 Difference]: Without dead ends: 815 [2022-12-13 11:42:22,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-12-13 11:42:22,216 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1378 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 4546 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 4970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 4546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:22,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 2170 Invalid, 4970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 4546 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-13 11:42:22,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2022-12-13 11:42:22,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 568. [2022-12-13 11:42:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 447 states have (on average 1.5973154362416107) internal successors, (714), 464 states have internal predecessors, (714), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2022-12-13 11:42:22,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 903 transitions. [2022-12-13 11:42:22,299 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 903 transitions. Word has length 110 [2022-12-13 11:42:22,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:22,299 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 903 transitions. [2022-12-13 11:42:22,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 11:42:22,300 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 903 transitions. [2022-12-13 11:42:22,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-13 11:42:22,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:22,301 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:22,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 11:42:22,301 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:22,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:22,301 INFO L85 PathProgramCache]: Analyzing trace with hash -236974012, now seen corresponding path program 1 times [2022-12-13 11:42:22,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:22,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326558581] [2022-12-13 11:42:22,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:22,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:42:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 11:42:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 11:42:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 11:42:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:42:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:42:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:22,456 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:42:22,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:22,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326558581] [2022-12-13 11:42:22,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326558581] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:22,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:42:22,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:42:22,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731582882] [2022-12-13 11:42:22,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:22,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:42:22,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:22,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:42:22,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:42:22,458 INFO L87 Difference]: Start difference. First operand 568 states and 903 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:25,521 INFO L93 Difference]: Finished difference Result 1294 states and 2080 transitions. [2022-12-13 11:42:25,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:42:25,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2022-12-13 11:42:25,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:25,526 INFO L225 Difference]: With dead ends: 1294 [2022-12-13 11:42:25,526 INFO L226 Difference]: Without dead ends: 787 [2022-12-13 11:42:25,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:42:25,528 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1357 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 2732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 2318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:25,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 1168 Invalid, 2732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-13 11:42:25,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-12-13 11:42:25,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 568. [2022-12-13 11:42:25,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 447 states have (on average 1.5861297539149888) internal successors, (709), 464 states have internal predecessors, (709), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2022-12-13 11:42:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 898 transitions. [2022-12-13 11:42:25,621 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 898 transitions. Word has length 110 [2022-12-13 11:42:25,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:25,622 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 898 transitions. [2022-12-13 11:42:25,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:25,622 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 898 transitions. [2022-12-13 11:42:25,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-13 11:42:25,623 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:25,623 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:25,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 11:42:25,623 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:25,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:25,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1584929962, now seen corresponding path program 1 times [2022-12-13 11:42:25,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:25,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071353050] [2022-12-13 11:42:25,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:25,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:42:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 11:42:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 11:42:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 11:42:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 11:42:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 11:42:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:25,807 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:42:25,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:25,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071353050] [2022-12-13 11:42:25,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071353050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:25,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:42:25,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:42:25,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219591726] [2022-12-13 11:42:25,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:25,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:42:25,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:25,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:42:25,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:42:25,809 INFO L87 Difference]: Start difference. First operand 568 states and 898 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 11:42:29,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:29,286 INFO L93 Difference]: Finished difference Result 1316 states and 2103 transitions. [2022-12-13 11:42:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:42:29,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2022-12-13 11:42:29,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:29,289 INFO L225 Difference]: With dead ends: 1316 [2022-12-13 11:42:29,289 INFO L226 Difference]: Without dead ends: 824 [2022-12-13 11:42:29,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-12-13 11:42:29,290 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1361 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 4517 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 4942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 4517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:29,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 2200 Invalid, 4942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 4517 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 11:42:29,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-12-13 11:42:29,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 576. [2022-12-13 11:42:29,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 455 states have (on average 1.5736263736263736) internal successors, (716), 472 states have internal predecessors, (716), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2022-12-13 11:42:29,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 905 transitions. [2022-12-13 11:42:29,378 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 905 transitions. Word has length 111 [2022-12-13 11:42:29,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:29,378 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 905 transitions. [2022-12-13 11:42:29,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 11:42:29,378 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 905 transitions. [2022-12-13 11:42:29,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-13 11:42:29,379 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:29,379 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:29,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 11:42:29,379 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:29,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:29,380 INFO L85 PathProgramCache]: Analyzing trace with hash 482850102, now seen corresponding path program 1 times [2022-12-13 11:42:29,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:29,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811417609] [2022-12-13 11:42:29,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:29,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:42:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 11:42:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 11:42:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 11:42:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 11:42:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 11:42:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:42:29,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:29,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811417609] [2022-12-13 11:42:29,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811417609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:29,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:42:29,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:42:29,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256021495] [2022-12-13 11:42:29,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:29,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:42:29,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:29,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:42:29,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:42:29,548 INFO L87 Difference]: Start difference. First operand 576 states and 905 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:32,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:32,649 INFO L93 Difference]: Finished difference Result 1350 states and 2137 transitions. [2022-12-13 11:42:32,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:42:32,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2022-12-13 11:42:32,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:32,652 INFO L225 Difference]: With dead ends: 1350 [2022-12-13 11:42:32,653 INFO L226 Difference]: Without dead ends: 771 [2022-12-13 11:42:32,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:42:32,654 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 1273 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 2765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:32,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 1224 Invalid, 2765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 11:42:32,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2022-12-13 11:42:32,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 557. [2022-12-13 11:42:32,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 439 states have (on average 1.5785876993166288) internal successors, (693), 454 states have internal predecessors, (693), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2022-12-13 11:42:32,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 878 transitions. [2022-12-13 11:42:32,729 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 878 transitions. Word has length 111 [2022-12-13 11:42:32,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:32,729 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 878 transitions. [2022-12-13 11:42:32,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 11:42:32,730 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 878 transitions. [2022-12-13 11:42:32,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-13 11:42:32,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:32,731 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:32,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 11:42:32,731 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:32,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:32,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1396959961, now seen corresponding path program 1 times [2022-12-13 11:42:32,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:32,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129942626] [2022-12-13 11:42:32,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:32,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:42:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 11:42:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 11:42:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:42:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 11:42:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 11:42:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:32,939 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:42:32,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:32,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129942626] [2022-12-13 11:42:32,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129942626] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:32,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:42:32,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:42:32,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861396725] [2022-12-13 11:42:32,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:32,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:42:32,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:32,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:42:32,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:42:32,941 INFO L87 Difference]: Start difference. First operand 557 states and 878 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 11:42:36,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:36,369 INFO L93 Difference]: Finished difference Result 1297 states and 2062 transitions. [2022-12-13 11:42:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:42:36,370 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2022-12-13 11:42:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:36,372 INFO L225 Difference]: With dead ends: 1297 [2022-12-13 11:42:36,372 INFO L226 Difference]: Without dead ends: 804 [2022-12-13 11:42:36,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-12-13 11:42:36,373 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1316 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 4433 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 4852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 4433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:36,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 2294 Invalid, 4852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 4433 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-13 11:42:36,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2022-12-13 11:42:36,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 567. [2022-12-13 11:42:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 449 states have (on average 1.5657015590200445) internal successors, (703), 464 states have internal predecessors, (703), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2022-12-13 11:42:36,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 888 transitions. [2022-12-13 11:42:36,452 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 888 transitions. Word has length 112 [2022-12-13 11:42:36,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:36,452 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 888 transitions. [2022-12-13 11:42:36,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 11:42:36,453 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 888 transitions. [2022-12-13 11:42:36,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-13 11:42:36,454 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:36,454 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:36,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 11:42:36,454 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:36,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:36,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1570740619, now seen corresponding path program 1 times [2022-12-13 11:42:36,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:36,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004999208] [2022-12-13 11:42:36,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:36,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 11:42:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 11:42:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 11:42:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:42:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 11:42:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,626 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 11:42:36,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:36,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004999208] [2022-12-13 11:42:36,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004999208] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:36,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474472708] [2022-12-13 11:42:36,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:36,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:36,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:36,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:36,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 11:42:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:36,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:42:36,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 11:42:36,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:36,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474472708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:36,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:36,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-12-13 11:42:36,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273999022] [2022-12-13 11:42:36,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:36,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:42:36,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:36,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:42:36,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:42:36,795 INFO L87 Difference]: Start difference. First operand 567 states and 888 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 11:42:36,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:36,966 INFO L93 Difference]: Finished difference Result 1544 states and 2497 transitions. [2022-12-13 11:42:36,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:42:36,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2022-12-13 11:42:36,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:36,970 INFO L225 Difference]: With dead ends: 1544 [2022-12-13 11:42:36,970 INFO L226 Difference]: Without dead ends: 1053 [2022-12-13 11:42:36,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:42:36,973 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 832 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:36,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 1724 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:42:36,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2022-12-13 11:42:37,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1046. [2022-12-13 11:42:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 822 states have (on average 1.5924574209245743) internal successors, (1309), 850 states have internal predecessors, (1309), 178 states have call successors, (178), 46 states have call predecessors, (178), 45 states have return successors, (188), 175 states have call predecessors, (188), 176 states have call successors, (188) [2022-12-13 11:42:37,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1675 transitions. [2022-12-13 11:42:37,162 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1675 transitions. Word has length 113 [2022-12-13 11:42:37,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:37,163 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1675 transitions. [2022-12-13 11:42:37,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 11:42:37,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1675 transitions. [2022-12-13 11:42:37,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-13 11:42:37,164 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:37,164 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:37,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:42:37,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:37,366 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:37,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:37,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1508701005, now seen corresponding path program 1 times [2022-12-13 11:42:37,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:37,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756618999] [2022-12-13 11:42:37,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:37,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 11:42:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 11:42:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 11:42:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:42:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 11:42:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 11:42:37,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:37,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756618999] [2022-12-13 11:42:37,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756618999] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:37,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943833214] [2022-12-13 11:42:37,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:37,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:37,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:37,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:37,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 11:42:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:37,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:42:37,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 11:42:37,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:37,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943833214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:37,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:37,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-12-13 11:42:37,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071270715] [2022-12-13 11:42:37,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:37,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:42:37,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:37,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:42:37,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 11:42:37,808 INFO L87 Difference]: Start difference. First operand 1046 states and 1675 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 11:42:38,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:38,433 INFO L93 Difference]: Finished difference Result 2032 states and 3335 transitions. [2022-12-13 11:42:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:42:38,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2022-12-13 11:42:38,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:38,437 INFO L225 Difference]: With dead ends: 2032 [2022-12-13 11:42:38,437 INFO L226 Difference]: Without dead ends: 1062 [2022-12-13 11:42:38,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:42:38,441 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 779 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:38,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 2065 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:42:38,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2022-12-13 11:42:38,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1062. [2022-12-13 11:42:38,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 836 states have (on average 1.5944976076555024) internal successors, (1333), 864 states have internal predecessors, (1333), 178 states have call successors, (178), 48 states have call predecessors, (178), 47 states have return successors, (190), 175 states have call predecessors, (190), 176 states have call successors, (190) [2022-12-13 11:42:38,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1701 transitions. [2022-12-13 11:42:38,601 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1701 transitions. Word has length 113 [2022-12-13 11:42:38,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:38,601 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1701 transitions. [2022-12-13 11:42:38,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 11:42:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1701 transitions. [2022-12-13 11:42:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-13 11:42:38,603 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:38,603 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:38,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 11:42:38,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 11:42:38,804 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:38,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:38,805 INFO L85 PathProgramCache]: Analyzing trace with hash 634660036, now seen corresponding path program 1 times [2022-12-13 11:42:38,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:38,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250449368] [2022-12-13 11:42:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:38,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 11:42:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 11:42:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 11:42:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 11:42:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 11:42:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:38,996 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 11:42:38,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:38,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250449368] [2022-12-13 11:42:38,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250449368] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:38,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453108174] [2022-12-13 11:42:38,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:38,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:38,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:38,998 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:38,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 11:42:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:39,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1223 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:42:39,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 11:42:39,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:39,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453108174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:39,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:39,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-12-13 11:42:39,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259621340] [2022-12-13 11:42:39,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:39,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:42:39,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:39,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:42:39,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 11:42:39,245 INFO L87 Difference]: Start difference. First operand 1062 states and 1701 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 11:42:39,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:39,786 INFO L93 Difference]: Finished difference Result 2064 states and 3381 transitions. [2022-12-13 11:42:39,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:42:39,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2022-12-13 11:42:39,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:39,790 INFO L225 Difference]: With dead ends: 2064 [2022-12-13 11:42:39,790 INFO L226 Difference]: Without dead ends: 1078 [2022-12-13 11:42:39,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:42:39,793 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 789 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:39,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 2065 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:42:39,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-12-13 11:42:39,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1078. [2022-12-13 11:42:39,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 850 states have (on average 1.596470588235294) internal successors, (1357), 878 states have internal predecessors, (1357), 178 states have call successors, (178), 50 states have call predecessors, (178), 49 states have return successors, (192), 175 states have call predecessors, (192), 176 states have call successors, (192) [2022-12-13 11:42:39,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1727 transitions. [2022-12-13 11:42:39,951 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1727 transitions. Word has length 116 [2022-12-13 11:42:39,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:39,951 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1727 transitions. [2022-12-13 11:42:39,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 11:42:39,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1727 transitions. [2022-12-13 11:42:39,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 11:42:39,952 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:39,952 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:39,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 11:42:40,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:40,153 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:40,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:40,153 INFO L85 PathProgramCache]: Analyzing trace with hash -198476695, now seen corresponding path program 1 times [2022-12-13 11:42:40,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:40,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101896690] [2022-12-13 11:42:40,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:40,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:42:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 11:42:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 11:42:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 11:42:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:42:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-13 11:42:40,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:40,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101896690] [2022-12-13 11:42:40,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101896690] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:40,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393449326] [2022-12-13 11:42:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:40,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:40,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:40,373 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:40,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 11:42:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:40,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:42:40,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:40,650 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-13 11:42:40,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:40,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393449326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:40,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:40,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-12-13 11:42:40,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719391200] [2022-12-13 11:42:40,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:40,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:42:40,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:40,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:42:40,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 11:42:40,652 INFO L87 Difference]: Start difference. First operand 1078 states and 1727 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 11:42:41,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:41,115 INFO L93 Difference]: Finished difference Result 2096 states and 3427 transitions. [2022-12-13 11:42:41,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:42:41,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-12-13 11:42:41,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:41,118 INFO L225 Difference]: With dead ends: 2096 [2022-12-13 11:42:41,118 INFO L226 Difference]: Without dead ends: 1094 [2022-12-13 11:42:41,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:42:41,122 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 786 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:41,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 2065 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:42:41,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2022-12-13 11:42:41,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2022-12-13 11:42:41,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 864 states have (on average 1.5983796296296295) internal successors, (1381), 892 states have internal predecessors, (1381), 178 states have call successors, (178), 52 states have call predecessors, (178), 51 states have return successors, (194), 175 states have call predecessors, (194), 176 states have call successors, (194) [2022-12-13 11:42:41,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1753 transitions. [2022-12-13 11:42:41,283 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1753 transitions. Word has length 119 [2022-12-13 11:42:41,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:41,283 INFO L495 AbstractCegarLoop]: Abstraction has 1094 states and 1753 transitions. [2022-12-13 11:42:41,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 11:42:41,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1753 transitions. [2022-12-13 11:42:41,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-13 11:42:41,285 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:41,285 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:41,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 11:42:41,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:41,486 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:41,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:41,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1638157160, now seen corresponding path program 1 times [2022-12-13 11:42:41,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:41,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626748045] [2022-12-13 11:42:41,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:41,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 11:42:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:42:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 11:42:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 11:42:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 11:42:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,687 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 11:42:41,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:41,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626748045] [2022-12-13 11:42:41,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626748045] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:41,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255917329] [2022-12-13 11:42:41,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:41,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:41,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:41,688 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:41,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 11:42:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:41,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:42:41,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 11:42:41,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:41,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255917329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:41,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:41,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-12-13 11:42:41,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154901493] [2022-12-13 11:42:41,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:41,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:42:41,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:41,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:42:41,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 11:42:41,918 INFO L87 Difference]: Start difference. First operand 1094 states and 1753 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 11:42:42,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:42,444 INFO L93 Difference]: Finished difference Result 2128 states and 3473 transitions. [2022-12-13 11:42:42,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:42:42,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2022-12-13 11:42:42,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:42,448 INFO L225 Difference]: With dead ends: 2128 [2022-12-13 11:42:42,448 INFO L226 Difference]: Without dead ends: 1110 [2022-12-13 11:42:42,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:42:42,452 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 783 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:42,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 2065 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:42:42,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-12-13 11:42:42,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1110. [2022-12-13 11:42:42,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 878 states have (on average 1.6002277904328017) internal successors, (1405), 906 states have internal predecessors, (1405), 178 states have call successors, (178), 54 states have call predecessors, (178), 53 states have return successors, (196), 175 states have call predecessors, (196), 176 states have call successors, (196) [2022-12-13 11:42:42,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1779 transitions. [2022-12-13 11:42:42,619 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1779 transitions. Word has length 122 [2022-12-13 11:42:42,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:42,619 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1779 transitions. [2022-12-13 11:42:42,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 11:42:42,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1779 transitions. [2022-12-13 11:42:42,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-12-13 11:42:42,621 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:42,622 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:42,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 11:42:42,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:42,822 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:42,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:42,823 INFO L85 PathProgramCache]: Analyzing trace with hash 133963653, now seen corresponding path program 1 times [2022-12-13 11:42:42,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:42,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796395216] [2022-12-13 11:42:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:42,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:42:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:42:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:42:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 11:42:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 11:42:43,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:43,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796395216] [2022-12-13 11:42:43,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796395216] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:43,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252759147] [2022-12-13 11:42:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:43,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:43,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:43,161 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:43,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 11:42:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:43,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 11:42:43,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 11:42:43,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:43,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252759147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:43,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:43,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2022-12-13 11:42:43,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386952087] [2022-12-13 11:42:43,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:43,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:42:43,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:43,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:42:43,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-12-13 11:42:43,449 INFO L87 Difference]: Start difference. First operand 1110 states and 1779 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 11:42:44,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:44,002 INFO L93 Difference]: Finished difference Result 2156 states and 3492 transitions. [2022-12-13 11:42:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:42:44,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 125 [2022-12-13 11:42:44,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:44,006 INFO L225 Difference]: With dead ends: 2156 [2022-12-13 11:42:44,006 INFO L226 Difference]: Without dead ends: 1122 [2022-12-13 11:42:44,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-12-13 11:42:44,009 INFO L413 NwaCegarLoop]: 973 mSDtfsCounter, 950 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 3600 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:44,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 3600 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:42:44,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-12-13 11:42:44,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1113. [2022-12-13 11:42:44,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 880 states have (on average 1.5988636363636364) internal successors, (1407), 909 states have internal predecessors, (1407), 178 states have call successors, (178), 54 states have call predecessors, (178), 54 states have return successors, (197), 175 states have call predecessors, (197), 176 states have call successors, (197) [2022-12-13 11:42:44,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1782 transitions. [2022-12-13 11:42:44,170 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1782 transitions. Word has length 125 [2022-12-13 11:42:44,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:44,170 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1782 transitions. [2022-12-13 11:42:44,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 11:42:44,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1782 transitions. [2022-12-13 11:42:44,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-13 11:42:44,172 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:44,172 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:44,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 11:42:44,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:44,373 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:44,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:44,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1447064827, now seen corresponding path program 1 times [2022-12-13 11:42:44,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:44,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512398856] [2022-12-13 11:42:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:44,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:42:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:42:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 11:42:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 11:42:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 11:42:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 11:42:44,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:44,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512398856] [2022-12-13 11:42:44,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512398856] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:44,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868980701] [2022-12-13 11:42:44,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:44,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:44,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:44,814 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:44,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 11:42:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:44,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 11:42:44,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 11:42:45,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:45,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868980701] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:45,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:45,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 11:42:45,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958668283] [2022-12-13 11:42:45,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:45,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:42:45,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:45,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:42:45,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:42:45,111 INFO L87 Difference]: Start difference. First operand 1113 states and 1782 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 11:42:45,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:45,557 INFO L93 Difference]: Finished difference Result 2168 states and 3527 transitions. [2022-12-13 11:42:45,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:42:45,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-12-13 11:42:45,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:45,567 INFO L225 Difference]: With dead ends: 2168 [2022-12-13 11:42:45,567 INFO L226 Difference]: Without dead ends: 1131 [2022-12-13 11:42:45,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-12-13 11:42:45,571 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 765 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:45,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 3405 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:42:45,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2022-12-13 11:42:45,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1123. [2022-12-13 11:42:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 886 states have (on average 1.5948081264108351) internal successors, (1413), 918 states have internal predecessors, (1413), 180 states have call successors, (180), 55 states have call predecessors, (180), 56 states have return successors, (207), 175 states have call predecessors, (207), 178 states have call successors, (207) [2022-12-13 11:42:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1800 transitions. [2022-12-13 11:42:45,749 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1800 transitions. Word has length 127 [2022-12-13 11:42:45,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:45,750 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1800 transitions. [2022-12-13 11:42:45,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 11:42:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1800 transitions. [2022-12-13 11:42:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-13 11:42:45,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:45,751 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:45,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 11:42:45,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:45,952 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:45,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:45,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1331806851, now seen corresponding path program 1 times [2022-12-13 11:42:45,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:45,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425020692] [2022-12-13 11:42:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:45,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:42:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:42:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 11:42:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:42:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 11:42:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 11:42:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 11:42:46,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:46,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425020692] [2022-12-13 11:42:46,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425020692] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:46,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654637180] [2022-12-13 11:42:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:46,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:46,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:46,272 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:46,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 11:42:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:46,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:42:46,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 11:42:46,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:46,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654637180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:46,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:46,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-12-13 11:42:46,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359086439] [2022-12-13 11:42:46,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:46,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:42:46,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:46,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:42:46,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:42:46,465 INFO L87 Difference]: Start difference. First operand 1123 states and 1800 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:42:46,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:46,758 INFO L93 Difference]: Finished difference Result 2684 states and 4383 transitions. [2022-12-13 11:42:46,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:42:46,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-12-13 11:42:46,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:46,764 INFO L225 Difference]: With dead ends: 2684 [2022-12-13 11:42:46,764 INFO L226 Difference]: Without dead ends: 1638 [2022-12-13 11:42:46,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:42:46,768 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 777 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:46,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 2415 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:42:46,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-12-13 11:42:46,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1123. [2022-12-13 11:42:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 886 states have (on average 1.5936794582392777) internal successors, (1412), 918 states have internal predecessors, (1412), 180 states have call successors, (180), 55 states have call predecessors, (180), 56 states have return successors, (207), 175 states have call predecessors, (207), 178 states have call successors, (207) [2022-12-13 11:42:46,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1799 transitions. [2022-12-13 11:42:46,941 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1799 transitions. Word has length 132 [2022-12-13 11:42:46,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:46,942 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1799 transitions. [2022-12-13 11:42:46,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:42:46,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1799 transitions. [2022-12-13 11:42:46,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-13 11:42:46,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:46,943 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:46,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 11:42:47,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:47,146 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:47,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:47,147 INFO L85 PathProgramCache]: Analyzing trace with hash -630206977, now seen corresponding path program 1 times [2022-12-13 11:42:47,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:47,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937375894] [2022-12-13 11:42:47,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:47,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:42:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:42:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 11:42:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:42:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 11:42:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 11:42:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 11:42:47,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:47,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937375894] [2022-12-13 11:42:47,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937375894] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:47,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050123128] [2022-12-13 11:42:47,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:47,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:47,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:47,503 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:47,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 11:42:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:47,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 11:42:47,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 11:42:47,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:47,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050123128] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:47,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:47,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 11:42:47,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130466843] [2022-12-13 11:42:47,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:47,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:42:47,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:47,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:42:47,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:42:47,751 INFO L87 Difference]: Start difference. First operand 1123 states and 1799 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:42:48,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:48,064 INFO L93 Difference]: Finished difference Result 2779 states and 4534 transitions. [2022-12-13 11:42:48,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:42:48,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-12-13 11:42:48,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:48,070 INFO L225 Difference]: With dead ends: 2779 [2022-12-13 11:42:48,070 INFO L226 Difference]: Without dead ends: 1734 [2022-12-13 11:42:48,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-12-13 11:42:48,073 INFO L413 NwaCegarLoop]: 967 mSDtfsCounter, 354 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:48,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 3741 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:42:48,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2022-12-13 11:42:48,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1722. [2022-12-13 11:42:48,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1364 states have (on average 1.5696480938416422) internal successors, (2141), 1401 states have internal predecessors, (2141), 264 states have call successors, (264), 91 states have call predecessors, (264), 93 states have return successors, (343), 255 states have call predecessors, (343), 260 states have call successors, (343) [2022-12-13 11:42:48,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2748 transitions. [2022-12-13 11:42:48,323 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2748 transitions. Word has length 132 [2022-12-13 11:42:48,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:48,323 INFO L495 AbstractCegarLoop]: Abstraction has 1722 states and 2748 transitions. [2022-12-13 11:42:48,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:42:48,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2748 transitions. [2022-12-13 11:42:48,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-13 11:42:48,325 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:48,325 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:48,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 11:42:48,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-13 11:42:48,526 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:48,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:48,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1846360703, now seen corresponding path program 1 times [2022-12-13 11:42:48,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:48,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162970059] [2022-12-13 11:42:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:48,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:42:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:42:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 11:42:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:42:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 11:42:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 11:42:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:48,960 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 11:42:48,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:48,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162970059] [2022-12-13 11:42:48,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162970059] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:48,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607300740] [2022-12-13 11:42:48,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:48,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:48,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:48,962 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:48,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 11:42:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:49,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:42:49,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:49,189 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 11:42:49,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:49,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607300740] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:49,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:49,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2022-12-13 11:42:49,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516892927] [2022-12-13 11:42:49,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:49,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:42:49,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:49,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:42:49,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:42:49,191 INFO L87 Difference]: Start difference. First operand 1722 states and 2748 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:42:49,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:49,546 INFO L93 Difference]: Finished difference Result 3116 states and 4967 transitions. [2022-12-13 11:42:49,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:42:49,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-12-13 11:42:49,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:49,551 INFO L225 Difference]: With dead ends: 3116 [2022-12-13 11:42:49,551 INFO L226 Difference]: Without dead ends: 1472 [2022-12-13 11:42:49,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:42:49,554 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 558 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:49,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1326 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:42:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-12-13 11:42:49,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-12-13 11:42:49,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1166 states have (on average 1.5471698113207548) internal successors, (1804), 1194 states have internal predecessors, (1804), 223 states have call successors, (223), 83 states have call predecessors, (223), 82 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2022-12-13 11:42:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2306 transitions. [2022-12-13 11:42:49,773 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2306 transitions. Word has length 132 [2022-12-13 11:42:49,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:49,773 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 2306 transitions. [2022-12-13 11:42:49,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:42:49,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2306 transitions. [2022-12-13 11:42:49,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 11:42:49,775 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:49,775 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:49,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 11:42:49,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 11:42:49,976 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:49,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:49,978 INFO L85 PathProgramCache]: Analyzing trace with hash -283216753, now seen corresponding path program 1 times [2022-12-13 11:42:49,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:49,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611051385] [2022-12-13 11:42:49,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:49,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:42:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 11:42:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:42:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 11:42:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 11:42:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 11:42:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 11:42:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 11:42:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 11:42:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,340 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-12-13 11:42:50,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:50,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611051385] [2022-12-13 11:42:50,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611051385] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:50,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260298410] [2022-12-13 11:42:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:50,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:50,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:50,341 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:50,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 11:42:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:50,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:42:50,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:50,492 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-13 11:42:50,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:50,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260298410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:50,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:50,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-12-13 11:42:50,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061337722] [2022-12-13 11:42:50,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:50,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:42:50,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:50,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:42:50,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:42:50,494 INFO L87 Difference]: Start difference. First operand 1472 states and 2306 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 11:42:50,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:50,855 INFO L93 Difference]: Finished difference Result 2944 states and 4680 transitions. [2022-12-13 11:42:50,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:42:50,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2022-12-13 11:42:50,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:50,861 INFO L225 Difference]: With dead ends: 2944 [2022-12-13 11:42:50,861 INFO L226 Difference]: Without dead ends: 1550 [2022-12-13 11:42:50,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:42:50,865 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 213 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:50,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2274 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:42:50,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-12-13 11:42:51,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1550. [2022-12-13 11:42:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1242 states have (on average 1.570048309178744) internal successors, (1950), 1270 states have internal predecessors, (1950), 223 states have call successors, (223), 85 states have call predecessors, (223), 84 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2022-12-13 11:42:51,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2452 transitions. [2022-12-13 11:42:51,079 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2452 transitions. Word has length 155 [2022-12-13 11:42:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:51,079 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 2452 transitions. [2022-12-13 11:42:51,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 11:42:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2452 transitions. [2022-12-13 11:42:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-13 11:42:51,081 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:51,081 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:51,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-13 11:42:51,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 11:42:51,282 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:51,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:51,283 INFO L85 PathProgramCache]: Analyzing trace with hash -951111480, now seen corresponding path program 1 times [2022-12-13 11:42:51,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:51,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316113373] [2022-12-13 11:42:51,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:51,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:42:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 11:42:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 11:42:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 11:42:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 11:42:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 11:42:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 11:42:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 11:42:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 11:42:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,582 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-12-13 11:42:51,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:51,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316113373] [2022-12-13 11:42:51,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316113373] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:51,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473054281] [2022-12-13 11:42:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:51,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:51,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:51,583 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:51,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 11:42:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:51,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:42:51,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 11:42:51,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:51,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473054281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:51,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:51,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-12-13 11:42:51,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826551454] [2022-12-13 11:42:51,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:51,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:42:51,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:51,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:42:51,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:42:51,827 INFO L87 Difference]: Start difference. First operand 1550 states and 2452 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 11:42:52,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:52,257 INFO L93 Difference]: Finished difference Result 3100 states and 4970 transitions. [2022-12-13 11:42:52,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:42:52,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2022-12-13 11:42:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:52,263 INFO L225 Difference]: With dead ends: 3100 [2022-12-13 11:42:52,263 INFO L226 Difference]: Without dead ends: 1628 [2022-12-13 11:42:52,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:42:52,267 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 211 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:52,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2274 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:42:52,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2022-12-13 11:42:52,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1628. [2022-12-13 11:42:52,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1318 states have (on average 1.590288315629742) internal successors, (2096), 1346 states have internal predecessors, (2096), 223 states have call successors, (223), 87 states have call predecessors, (223), 86 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2022-12-13 11:42:52,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2598 transitions. [2022-12-13 11:42:52,500 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2598 transitions. Word has length 160 [2022-12-13 11:42:52,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:52,500 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2598 transitions. [2022-12-13 11:42:52,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 11:42:52,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2598 transitions. [2022-12-13 11:42:52,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-12-13 11:42:52,502 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:52,502 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:52,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-13 11:42:52,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-13 11:42:52,703 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:52,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:52,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1561160248, now seen corresponding path program 1 times [2022-12-13 11:42:52,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:52,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115200545] [2022-12-13 11:42:52,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:52,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:52,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:52,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:52,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:42:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 11:42:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 11:42:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:42:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:42:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 11:42:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 11:42:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 11:42:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 11:42:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-12-13 11:42:53,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:53,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115200545] [2022-12-13 11:42:53,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115200545] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:53,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054409479] [2022-12-13 11:42:53,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:53,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:53,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:53,041 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:53,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 11:42:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:53,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:42:53,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 11:42:53,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:53,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054409479] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:53,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:53,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-12-13 11:42:53,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61310377] [2022-12-13 11:42:53,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:53,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:42:53,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:53,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:42:53,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:42:53,248 INFO L87 Difference]: Start difference. First operand 1628 states and 2598 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 11:42:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:53,551 INFO L93 Difference]: Finished difference Result 3256 states and 5260 transitions. [2022-12-13 11:42:53,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:42:53,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2022-12-13 11:42:53,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:53,556 INFO L225 Difference]: With dead ends: 3256 [2022-12-13 11:42:53,556 INFO L226 Difference]: Without dead ends: 1706 [2022-12-13 11:42:53,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:42:53,560 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 209 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:53,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2274 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:42:53,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2022-12-13 11:42:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2022-12-13 11:42:53,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1394 states have (on average 1.6083213773314204) internal successors, (2242), 1422 states have internal predecessors, (2242), 223 states have call successors, (223), 89 states have call predecessors, (223), 88 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2022-12-13 11:42:53,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2744 transitions. [2022-12-13 11:42:53,776 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2744 transitions. Word has length 164 [2022-12-13 11:42:53,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:53,776 INFO L495 AbstractCegarLoop]: Abstraction has 1706 states and 2744 transitions. [2022-12-13 11:42:53,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 11:42:53,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2744 transitions. [2022-12-13 11:42:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-13 11:42:53,778 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:53,779 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:53,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 11:42:53,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-13 11:42:53,980 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:53,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1643636049, now seen corresponding path program 1 times [2022-12-13 11:42:53,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:53,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37092865] [2022-12-13 11:42:53,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:53,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:42:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 11:42:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 11:42:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:42:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 11:42:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 11:42:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 11:42:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 11:42:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 11:42:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-12-13 11:42:54,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:54,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37092865] [2022-12-13 11:42:54,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37092865] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:54,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327125111] [2022-12-13 11:42:54,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:54,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:54,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:54,264 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:54,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 11:42:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:54,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:42:54,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:54,432 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 11:42:54,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:54,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327125111] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:54,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:54,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-12-13 11:42:54,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136263364] [2022-12-13 11:42:54,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:54,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:42:54,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:54,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:42:54,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:42:54,434 INFO L87 Difference]: Start difference. First operand 1706 states and 2744 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 11:42:54,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:54,781 INFO L93 Difference]: Finished difference Result 3412 states and 5550 transitions. [2022-12-13 11:42:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:42:54,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2022-12-13 11:42:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:54,787 INFO L225 Difference]: With dead ends: 3412 [2022-12-13 11:42:54,787 INFO L226 Difference]: Without dead ends: 1784 [2022-12-13 11:42:54,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:42:54,791 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 207 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:54,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2274 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:42:54,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2022-12-13 11:42:55,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2022-12-13 11:42:55,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1470 states have (on average 1.6244897959183673) internal successors, (2388), 1498 states have internal predecessors, (2388), 223 states have call successors, (223), 91 states have call predecessors, (223), 90 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2022-12-13 11:42:55,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2890 transitions. [2022-12-13 11:42:55,097 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2890 transitions. Word has length 167 [2022-12-13 11:42:55,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:55,097 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 2890 transitions. [2022-12-13 11:42:55,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 11:42:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2890 transitions. [2022-12-13 11:42:55,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 11:42:55,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:55,100 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:55,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-13 11:42:55,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:55,300 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:55,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1516673347, now seen corresponding path program 1 times [2022-12-13 11:42:55,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:55,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663010706] [2022-12-13 11:42:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:55,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:42:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 11:42:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 11:42:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:42:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 11:42:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 11:42:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 11:42:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 11:42:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 11:42:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-12-13 11:42:55,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:55,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663010706] [2022-12-13 11:42:55,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663010706] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:55,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844229554] [2022-12-13 11:42:55,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:55,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:55,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:55,586 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:55,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 11:42:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:55,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:42:55,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-12-13 11:42:55,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:55,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844229554] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:55,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:55,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-12-13 11:42:55,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803378935] [2022-12-13 11:42:55,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:55,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:42:55,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:55,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:42:55,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:42:55,763 INFO L87 Difference]: Start difference. First operand 1784 states and 2890 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 11:42:56,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:56,193 INFO L93 Difference]: Finished difference Result 3552 states and 5825 transitions. [2022-12-13 11:42:56,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:42:56,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-12-13 11:42:56,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:56,203 INFO L225 Difference]: With dead ends: 3552 [2022-12-13 11:42:56,203 INFO L226 Difference]: Without dead ends: 1846 [2022-12-13 11:42:56,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:42:56,208 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 69 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:56,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2505 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:42:56,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2022-12-13 11:42:56,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1792. [2022-12-13 11:42:56,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1478 states have (on average 1.6211096075778078) internal successors, (2396), 1506 states have internal predecessors, (2396), 223 states have call successors, (223), 91 states have call predecessors, (223), 90 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2022-12-13 11:42:56,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2898 transitions. [2022-12-13 11:42:56,543 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2898 transitions. Word has length 169 [2022-12-13 11:42:56,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:42:56,544 INFO L495 AbstractCegarLoop]: Abstraction has 1792 states and 2898 transitions. [2022-12-13 11:42:56,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 11:42:56,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2898 transitions. [2022-12-13 11:42:56,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-13 11:42:56,546 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:42:56,546 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:42:56,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 11:42:56,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:56,747 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:42:56,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:56,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1682707691, now seen corresponding path program 1 times [2022-12-13 11:42:56,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:56,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200436062] [2022-12-13 11:42:56,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:56,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:42:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:42:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:42:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:42:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 11:42:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 11:42:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 11:42:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 11:42:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:56,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 11:42:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:57,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 11:42:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:57,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 11:42:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:57,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 11:42:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:57,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:42:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:57,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 11:42:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-12-13 11:42:57,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:57,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200436062] [2022-12-13 11:42:57,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200436062] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:57,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727409021] [2022-12-13 11:42:57,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:57,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:57,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:57,021 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:57,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 11:42:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:57,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 1363 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-13 11:42:57,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:57,396 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-12-13 11:42:57,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:57,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727409021] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:57,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:57,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2022-12-13 11:42:57,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966918909] [2022-12-13 11:42:57,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:57,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:42:57,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:57,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:42:57,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-12-13 11:42:57,398 INFO L87 Difference]: Start difference. First operand 1792 states and 2898 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 11:42:59,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:42:59,692 INFO L93 Difference]: Finished difference Result 5525 states and 9141 transitions. [2022-12-13 11:42:59,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 11:42:59,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 175 [2022-12-13 11:42:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:42:59,707 INFO L225 Difference]: With dead ends: 5525 [2022-12-13 11:42:59,708 INFO L226 Difference]: Without dead ends: 3439 [2022-12-13 11:42:59,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2022-12-13 11:42:59,714 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1896 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 4396 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 4856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 4396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:42:59,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1995 Valid, 2410 Invalid, 4856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 4396 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 11:42:59,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2022-12-13 11:43:00,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 3359. [2022-12-13 11:43:00,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3359 states, 2712 states have (on average 1.6375368731563422) internal successors, (4441), 2794 states have internal predecessors, (4441), 463 states have call successors, (463), 163 states have call predecessors, (463), 183 states have return successors, (607), 459 states have call predecessors, (607), 459 states have call successors, (607) [2022-12-13 11:43:00,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 5511 transitions. [2022-12-13 11:43:00,373 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 5511 transitions. Word has length 175 [2022-12-13 11:43:00,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:43:00,373 INFO L495 AbstractCegarLoop]: Abstraction has 3359 states and 5511 transitions. [2022-12-13 11:43:00,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 11:43:00,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 5511 transitions. [2022-12-13 11:43:00,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-13 11:43:00,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:43:00,378 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:43:00,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 11:43:00,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-12-13 11:43:00,579 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:43:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:43:00,579 INFO L85 PathProgramCache]: Analyzing trace with hash 657818331, now seen corresponding path program 1 times [2022-12-13 11:43:00,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:43:00,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305837102] [2022-12-13 11:43:00,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:43:00,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:43:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:43:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:43:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:43:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:43:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 11:43:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 11:43:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 11:43:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 11:43:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 11:43:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 11:43:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 11:43:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 11:43:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 11:43:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:00,770 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-12-13 11:43:00,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:43:00,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305837102] [2022-12-13 11:43:00,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305837102] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:43:00,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:43:00,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:43:00,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817381665] [2022-12-13 11:43:00,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:43:00,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:43:00,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:43:00,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:43:00,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:43:00,772 INFO L87 Difference]: Start difference. First operand 3359 states and 5511 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 11:43:04,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:43:04,869 INFO L93 Difference]: Finished difference Result 7611 states and 12649 transitions. [2022-12-13 11:43:04,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 11:43:04,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 175 [2022-12-13 11:43:04,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:43:04,884 INFO L225 Difference]: With dead ends: 7611 [2022-12-13 11:43:04,884 INFO L226 Difference]: Without dead ends: 4266 [2022-12-13 11:43:04,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2022-12-13 11:43:04,892 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1383 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 3569 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 2887 SdHoareTripleChecker+Invalid, 3918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 3569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:43:04,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 2887 Invalid, 3918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 3569 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 11:43:04,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2022-12-13 11:43:05,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 3373. [2022-12-13 11:43:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3373 states, 2726 states have (on average 1.6258253851797506) internal successors, (4432), 2808 states have internal predecessors, (4432), 463 states have call successors, (463), 163 states have call predecessors, (463), 183 states have return successors, (607), 459 states have call predecessors, (607), 459 states have call successors, (607) [2022-12-13 11:43:05,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3373 states to 3373 states and 5502 transitions. [2022-12-13 11:43:05,424 INFO L78 Accepts]: Start accepts. Automaton has 3373 states and 5502 transitions. Word has length 175 [2022-12-13 11:43:05,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:43:05,424 INFO L495 AbstractCegarLoop]: Abstraction has 3373 states and 5502 transitions. [2022-12-13 11:43:05,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 11:43:05,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3373 states and 5502 transitions. [2022-12-13 11:43:05,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-12-13 11:43:05,429 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:43:05,429 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:43:05,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 11:43:05,430 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:43:05,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:43:05,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2003652775, now seen corresponding path program 1 times [2022-12-13 11:43:05,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:43:05,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793350024] [2022-12-13 11:43:05,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:43:05,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:43:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:43:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:43:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 11:43:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 11:43:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 11:43:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 11:43:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 11:43:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 11:43:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 11:43:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 11:43:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 11:43:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 11:43:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 11:43:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:05,643 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-12-13 11:43:05,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:43:05,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793350024] [2022-12-13 11:43:05,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793350024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:43:05,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:43:05,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:43:05,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701316606] [2022-12-13 11:43:05,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:43:05,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:43:05,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:43:05,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:43:05,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:43:05,645 INFO L87 Difference]: Start difference. First operand 3373 states and 5502 transitions. Second operand has 9 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 11:43:09,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:43:09,607 INFO L93 Difference]: Finished difference Result 7279 states and 12161 transitions. [2022-12-13 11:43:09,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:43:09,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 181 [2022-12-13 11:43:09,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:43:09,619 INFO L225 Difference]: With dead ends: 7279 [2022-12-13 11:43:09,619 INFO L226 Difference]: Without dead ends: 3790 [2022-12-13 11:43:09,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-12-13 11:43:09,627 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 831 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 3596 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 3725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:43:09,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 3049 Invalid, 3725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3596 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 11:43:09,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3790 states. [2022-12-13 11:43:10,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3790 to 2986. [2022-12-13 11:43:10,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2439 states have (on average 1.6695366953669537) internal successors, (4072), 2508 states have internal predecessors, (4072), 383 states have call successors, (383), 151 states have call predecessors, (383), 163 states have return successors, (477), 374 states have call predecessors, (477), 379 states have call successors, (477) [2022-12-13 11:43:10,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 4932 transitions. [2022-12-13 11:43:10,080 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 4932 transitions. Word has length 181 [2022-12-13 11:43:10,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:43:10,080 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 4932 transitions. [2022-12-13 11:43:10,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 11:43:10,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 4932 transitions. [2022-12-13 11:43:10,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-12-13 11:43:10,088 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:43:10,088 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:43:10,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 11:43:10,088 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:43:10,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:43:10,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1797175473, now seen corresponding path program 1 times [2022-12-13 11:43:10,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:43:10,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992184846] [2022-12-13 11:43:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:43:10,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:43:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:43:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:43:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:43:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:43:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 11:43:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:43:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 11:43:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:43:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:43:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 11:43:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:43:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 11:43:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:43:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 11:43:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:43:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:43:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 11:43:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:43:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:43:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:43:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 11:43:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:43:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:43:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-12-13 11:43:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:43:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-12-13 11:43:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-12-13 11:43:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-12-13 11:43:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-12-13 11:43:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-12-13 11:43:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-12-13 11:43:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-12-13 11:43:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-12-13 11:43:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-12-13 11:43:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2022-12-13 11:43:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:43:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2022-12-13 11:43:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:10,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 37 proven. 136 refuted. 0 times theorem prover too weak. 919 trivial. 0 not checked. [2022-12-13 11:43:10,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:43:10,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992184846] [2022-12-13 11:43:10,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992184846] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:43:10,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449335483] [2022-12-13 11:43:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:43:10,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:43:10,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:43:10,818 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:43:10,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 11:43:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:43:11,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 3211 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 11:43:11,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:43:11,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 369 proven. 50 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2022-12-13 11:43:11,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:43:12,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 53 proven. 100 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked. [2022-12-13 11:43:12,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449335483] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:43:12,114 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:43:12,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 14] total 34 [2022-12-13 11:43:12,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829828746] [2022-12-13 11:43:12,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:43:12,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-13 11:43:12,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:43:12,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-13 11:43:12,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 11:43:12,116 INFO L87 Difference]: Start difference. First operand 2986 states and 4932 transitions. Second operand has 34 states, 32 states have (on average 11.75) internal successors, (376), 25 states have internal predecessors, (376), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91) [2022-12-13 11:47:06,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:47:06,551 INFO L93 Difference]: Finished difference Result 35691 states and 75602 transitions. [2022-12-13 11:47:06,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 640 states. [2022-12-13 11:47:06,551 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 11.75) internal successors, (376), 25 states have internal predecessors, (376), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91) Word has length 469 [2022-12-13 11:47:06,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:47:06,726 INFO L225 Difference]: With dead ends: 35691 [2022-12-13 11:47:06,727 INFO L226 Difference]: Without dead ends: 32672 [2022-12-13 11:47:06,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2026 GetRequests, 1355 SyntacticMatches, 3 SemanticMatches, 668 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210406 ImplicationChecksByTransitivity, 62.7s TimeCoverageRelationStatistics Valid=30812, Invalid=417418, Unknown=0, NotChecked=0, Total=448230 [2022-12-13 11:47:06,827 INFO L413 NwaCegarLoop]: 3200 mSDtfsCounter, 44352 mSDsluCounter, 35415 mSDsCounter, 0 mSdLazyCounter, 209948 mSolverCounterSat, 61107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 139.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44352 SdHoareTripleChecker+Valid, 38615 SdHoareTripleChecker+Invalid, 271055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.7s SdHoareTripleChecker+Time, 61107 IncrementalHoareTripleChecker+Valid, 209948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 153.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:47:06,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44352 Valid, 38615 Invalid, 271055 Unknown, 0 Unchecked, 1.7s Time], IncrementalHoareTripleChecker [61107 Valid, 209948 Invalid, 0 Unknown, 0 Unchecked, 153.9s Time] [2022-12-13 11:47:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32672 states. [2022-12-13 11:47:10,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32672 to 15620. [2022-12-13 11:47:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15620 states, 12734 states have (on average 1.639547667661379) internal successors, (20878), 13092 states have internal predecessors, (20878), 1906 states have call successors, (1906), 844 states have call predecessors, (1906), 979 states have return successors, (2679), 1947 states have call predecessors, (2679), 1888 states have call successors, (2679) [2022-12-13 11:47:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15620 states to 15620 states and 25463 transitions. [2022-12-13 11:47:10,720 INFO L78 Accepts]: Start accepts. Automaton has 15620 states and 25463 transitions. Word has length 469 [2022-12-13 11:47:10,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:47:10,720 INFO L495 AbstractCegarLoop]: Abstraction has 15620 states and 25463 transitions. [2022-12-13 11:47:10,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 11.75) internal successors, (376), 25 states have internal predecessors, (376), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91) [2022-12-13 11:47:10,720 INFO L276 IsEmpty]: Start isEmpty. Operand 15620 states and 25463 transitions. [2022-12-13 11:47:10,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2022-12-13 11:47:10,753 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:47:10,753 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 16, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:47:10,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-13 11:47:10,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-12-13 11:47:10,954 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:47:10,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:47:10,954 INFO L85 PathProgramCache]: Analyzing trace with hash 85065112, now seen corresponding path program 1 times [2022-12-13 11:47:10,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:47:10,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549094480] [2022-12-13 11:47:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:47:10,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:47:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:47:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:47:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:47:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:47:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:47:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:47:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:47:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:47:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:47:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:47:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:47:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:47:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-12-13 11:47:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:47:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:47:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:47:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:47:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:47:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:47:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:47:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:47:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:47:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-12-13 11:47:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:47:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:47:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:47:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:47:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:47:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:47:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:47:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:47:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:47:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-12-13 11:47:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:47:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-12-13 11:47:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-12-13 11:47:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-12-13 11:47:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-12-13 11:47:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-12-13 11:47:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-12-13 11:47:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2022-12-13 11:47:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2022-12-13 11:47:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2022-12-13 11:47:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-12-13 11:47:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2022-12-13 11:47:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:11,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2308 backedges. 125 proven. 220 refuted. 0 times theorem prover too weak. 1963 trivial. 0 not checked. [2022-12-13 11:47:11,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:47:11,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549094480] [2022-12-13 11:47:11,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549094480] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:47:11,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442873515] [2022-12-13 11:47:11,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:47:11,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:47:11,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:47:11,650 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:47:11,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 11:47:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:12,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 3554 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:47:12,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:47:12,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2308 backedges. 938 proven. 0 refuted. 0 times theorem prover too weak. 1370 trivial. 0 not checked. [2022-12-13 11:47:12,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:47:12,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442873515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:47:12,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:47:12,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 17 [2022-12-13 11:47:12,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779192413] [2022-12-13 11:47:12,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:47:12,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:47:12,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:47:12,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:47:12,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-12-13 11:47:12,421 INFO L87 Difference]: Start difference. First operand 15620 states and 25463 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-13 11:47:15,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:47:15,760 INFO L93 Difference]: Finished difference Result 30937 states and 51253 transitions. [2022-12-13 11:47:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:47:15,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 592 [2022-12-13 11:47:15,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:47:15,803 INFO L225 Difference]: With dead ends: 30937 [2022-12-13 11:47:15,803 INFO L226 Difference]: Without dead ends: 15298 [2022-12-13 11:47:15,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 709 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-12-13 11:47:15,866 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 639 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:47:15,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 1969 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:47:15,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15298 states. [2022-12-13 11:47:18,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15298 to 15266. [2022-12-13 11:47:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15266 states, 12495 states have (on average 1.6340136054421768) internal successors, (20417), 12836 states have internal predecessors, (20417), 1883 states have call successors, (1883), 844 states have call predecessors, (1883), 887 states have return successors, (2468), 1849 states have call predecessors, (2468), 1865 states have call successors, (2468) [2022-12-13 11:47:18,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15266 states to 15266 states and 24768 transitions. [2022-12-13 11:47:18,842 INFO L78 Accepts]: Start accepts. Automaton has 15266 states and 24768 transitions. Word has length 592 [2022-12-13 11:47:18,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:47:18,842 INFO L495 AbstractCegarLoop]: Abstraction has 15266 states and 24768 transitions. [2022-12-13 11:47:18,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-13 11:47:18,842 INFO L276 IsEmpty]: Start isEmpty. Operand 15266 states and 24768 transitions. [2022-12-13 11:47:18,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-12-13 11:47:18,873 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:47:18,874 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 16, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:47:18,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-13 11:47:19,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-12-13 11:47:19,075 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:47:19,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:47:19,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2105090641, now seen corresponding path program 1 times [2022-12-13 11:47:19,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:47:19,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594343846] [2022-12-13 11:47:19,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:47:19,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:47:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:47:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:47:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:47:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:47:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:47:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:47:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:47:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:47:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:47:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:47:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:47:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:47:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-12-13 11:47:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:47:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:47:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:47:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:47:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:47:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:47:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:47:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:47:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:47:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-12-13 11:47:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:47:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:47:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:47:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:47:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:47:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:47:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:47:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:47:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:47:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-12-13 11:47:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:47:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-12-13 11:47:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-12-13 11:47:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-12-13 11:47:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2022-12-13 11:47:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2022-12-13 11:47:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-12-13 11:47:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-12-13 11:47:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2022-12-13 11:47:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-12-13 11:47:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2022-12-13 11:47:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2022-12-13 11:47:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:47:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2022-12-13 11:47:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2305 backedges. 119 proven. 220 refuted. 0 times theorem prover too weak. 1966 trivial. 0 not checked. [2022-12-13 11:47:19,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:47:19,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594343846] [2022-12-13 11:47:19,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594343846] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:47:19,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809263173] [2022-12-13 11:47:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:47:19,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:47:19,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:47:19,750 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:47:19,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 11:47:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:47:20,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 3570 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 11:47:20,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:47:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2305 backedges. 953 proven. 12 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2022-12-13 11:47:20,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:47:21,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2305 backedges. 117 proven. 2 refuted. 0 times theorem prover too weak. 2186 trivial. 0 not checked. [2022-12-13 11:47:21,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809263173] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:47:21,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:47:21,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 7] total 25 [2022-12-13 11:47:21,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121050819] [2022-12-13 11:47:21,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:47:21,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 11:47:21,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:47:21,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 11:47:21,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-12-13 11:47:21,324 INFO L87 Difference]: Start difference. First operand 15266 states and 24768 transitions. Second operand has 25 states, 25 states have (on average 17.16) internal successors, (429), 20 states have internal predecessors, (429), 10 states have call successors, (101), 10 states have call predecessors, (101), 13 states have return successors, (95), 14 states have call predecessors, (95), 10 states have call successors, (95) [2022-12-13 11:48:02,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:02,220 INFO L93 Difference]: Finished difference Result 42072 states and 71483 transitions. [2022-12-13 11:48:02,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-12-13 11:48:02,221 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 17.16) internal successors, (429), 20 states have internal predecessors, (429), 10 states have call successors, (101), 10 states have call predecessors, (101), 13 states have return successors, (95), 14 states have call predecessors, (95), 10 states have call successors, (95) Word has length 598 [2022-12-13 11:48:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:02,319 INFO L225 Difference]: With dead ends: 42072 [2022-12-13 11:48:02,319 INFO L226 Difference]: Without dead ends: 25344 [2022-12-13 11:48:02,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1448 GetRequests, 1349 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3453 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=2281, Invalid=7619, Unknown=0, NotChecked=0, Total=9900 [2022-12-13 11:48:02,380 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 12528 mSDsluCounter, 4980 mSDsCounter, 0 mSdLazyCounter, 24587 mSolverCounterSat, 7483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12528 SdHoareTripleChecker+Valid, 5467 SdHoareTripleChecker+Invalid, 32070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7483 IncrementalHoareTripleChecker+Valid, 24587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:02,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12528 Valid, 5467 Invalid, 32070 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7483 Valid, 24587 Invalid, 0 Unknown, 0 Unchecked, 22.8s Time] [2022-12-13 11:48:02,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25344 states. [2022-12-13 11:48:06,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25344 to 17417. [2022-12-13 11:48:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17417 states, 13818 states have (on average 1.552540165002171) internal successors, (21453), 14253 states have internal predecessors, (21453), 2445 states have call successors, (2445), 1101 states have call predecessors, (2445), 1153 states have return successors, (3406), 2350 states have call predecessors, (3406), 2423 states have call successors, (3406) [2022-12-13 11:48:06,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17417 states to 17417 states and 27304 transitions. [2022-12-13 11:48:06,490 INFO L78 Accepts]: Start accepts. Automaton has 17417 states and 27304 transitions. Word has length 598 [2022-12-13 11:48:06,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:06,490 INFO L495 AbstractCegarLoop]: Abstraction has 17417 states and 27304 transitions. [2022-12-13 11:48:06,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 17.16) internal successors, (429), 20 states have internal predecessors, (429), 10 states have call successors, (101), 10 states have call predecessors, (101), 13 states have return successors, (95), 14 states have call predecessors, (95), 10 states have call successors, (95) [2022-12-13 11:48:06,491 INFO L276 IsEmpty]: Start isEmpty. Operand 17417 states and 27304 transitions. [2022-12-13 11:48:06,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2022-12-13 11:48:06,518 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:06,518 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:06,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-12-13 11:48:06,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-12-13 11:48:06,720 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:06,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:06,721 INFO L85 PathProgramCache]: Analyzing trace with hash -190600248, now seen corresponding path program 1 times [2022-12-13 11:48:06,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:48:06,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633994780] [2022-12-13 11:48:06,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:06,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:48:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:48:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:48:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:48:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:48:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:48:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:48:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:48:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:48:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:48:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:48:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:48:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-12-13 11:48:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:48:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 11:48:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:48:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-12-13 11:48:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 11:48:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:48:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 11:48:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 11:48:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-12-13 11:48:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:48:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-12-13 11:48:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-12-13 11:48:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-12-13 11:48:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2022-12-13 11:48:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2022-12-13 11:48:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-12-13 11:48:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-12-13 11:48:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2022-12-13 11:48:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-12-13 11:48:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2022-12-13 11:48:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-12-13 11:48:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-12-13 11:48:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 80 proven. 62 refuted. 0 times theorem prover too weak. 1216 trivial. 0 not checked. [2022-12-13 11:48:07,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:48:07,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633994780] [2022-12-13 11:48:07,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633994780] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:48:07,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845171655] [2022-12-13 11:48:07,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:07,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:48:07,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:48:07,365 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:48:07,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 11:48:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:07,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 3408 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:48:07,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2022-12-13 11:48:07,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:07,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845171655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:07,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:48:07,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 17 [2022-12-13 11:48:07,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750197394] [2022-12-13 11:48:07,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:07,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:48:07,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:48:07,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:48:07,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-12-13 11:48:07,731 INFO L87 Difference]: Start difference. First operand 17417 states and 27304 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-13 11:48:11,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:11,836 INFO L93 Difference]: Finished difference Result 32537 states and 51018 transitions. [2022-12-13 11:48:11,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:48:11,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 540 [2022-12-13 11:48:11,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:11,885 INFO L225 Difference]: With dead ends: 32537 [2022-12-13 11:48:11,885 INFO L226 Difference]: Without dead ends: 18101 [2022-12-13 11:48:11,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-12-13 11:48:11,923 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 205 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:11,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2178 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:48:11,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18101 states. [2022-12-13 11:48:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18101 to 18101. [2022-12-13 11:48:15,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18101 states, 14478 states have (on average 1.567343555739743) internal successors, (22692), 14913 states have internal predecessors, (22692), 2445 states have call successors, (2445), 1125 states have call predecessors, (2445), 1177 states have return successors, (3406), 2350 states have call predecessors, (3406), 2423 states have call successors, (3406) [2022-12-13 11:48:16,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18101 states to 18101 states and 28543 transitions. [2022-12-13 11:48:16,055 INFO L78 Accepts]: Start accepts. Automaton has 18101 states and 28543 transitions. Word has length 540 [2022-12-13 11:48:16,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:16,055 INFO L495 AbstractCegarLoop]: Abstraction has 18101 states and 28543 transitions. [2022-12-13 11:48:16,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-13 11:48:16,055 INFO L276 IsEmpty]: Start isEmpty. Operand 18101 states and 28543 transitions. [2022-12-13 11:48:16,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2022-12-13 11:48:16,081 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:16,081 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:16,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-13 11:48:16,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-13 11:48:16,283 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:16,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:16,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1513909683, now seen corresponding path program 1 times [2022-12-13 11:48:16,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:48:16,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267952872] [2022-12-13 11:48:16,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:16,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:48:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:48:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:48:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:48:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:48:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:48:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:48:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:48:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:48:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:48:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 11:48:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 11:48:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-12-13 11:48:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:48:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 11:48:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:48:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-12-13 11:48:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 11:48:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 11:48:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 11:48:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-12-13 11:48:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:48:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-12-13 11:48:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-12-13 11:48:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-12-13 11:48:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-12-13 11:48:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-12-13 11:48:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-12-13 11:48:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-12-13 11:48:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2022-12-13 11:48:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2022-12-13 11:48:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-12-13 11:48:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-12-13 11:48:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-12-13 11:48:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:16,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1363 backedges. 61 proven. 72 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2022-12-13 11:48:16,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:48:16,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267952872] [2022-12-13 11:48:16,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267952872] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:48:16,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519039773] [2022-12-13 11:48:16,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:16,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:48:16,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:48:16,931 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:48:16,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-13 11:48:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:17,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 3377 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:48:17,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:17,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1363 backedges. 693 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2022-12-13 11:48:17,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:17,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519039773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:17,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:48:17,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-12-13 11:48:17,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842433439] [2022-12-13 11:48:17,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:17,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:48:17,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:48:17,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:48:17,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2022-12-13 11:48:17,323 INFO L87 Difference]: Start difference. First operand 18101 states and 28543 transitions. Second operand has 6 states, 6 states have (on average 37.5) internal successors, (225), 5 states have internal predecessors, (225), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-13 11:48:22,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:22,292 INFO L93 Difference]: Finished difference Result 37295 states and 58975 transitions. [2022-12-13 11:48:22,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:48:22,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.5) internal successors, (225), 5 states have internal predecessors, (225), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 528 [2022-12-13 11:48:22,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:22,353 INFO L225 Difference]: With dead ends: 37295 [2022-12-13 11:48:22,354 INFO L226 Difference]: Without dead ends: 19262 [2022-12-13 11:48:22,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 643 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-12-13 11:48:22,393 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 147 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:22,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 4161 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:48:22,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19262 states. [2022-12-13 11:48:26,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19262 to 18164. [2022-12-13 11:48:26,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18164 states, 14526 states have (on average 1.5654688145394464) internal successors, (22740), 14965 states have internal predecessors, (22740), 2445 states have call successors, (2445), 1125 states have call predecessors, (2445), 1192 states have return successors, (3422), 2361 states have call predecessors, (3422), 2423 states have call successors, (3422) [2022-12-13 11:48:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18164 states to 18164 states and 28607 transitions. [2022-12-13 11:48:26,686 INFO L78 Accepts]: Start accepts. Automaton has 18164 states and 28607 transitions. Word has length 528 [2022-12-13 11:48:26,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:26,686 INFO L495 AbstractCegarLoop]: Abstraction has 18164 states and 28607 transitions. [2022-12-13 11:48:26,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.5) internal successors, (225), 5 states have internal predecessors, (225), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-13 11:48:26,686 INFO L276 IsEmpty]: Start isEmpty. Operand 18164 states and 28607 transitions. [2022-12-13 11:48:26,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-12-13 11:48:26,711 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:26,711 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:26,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-12-13 11:48:26,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-12-13 11:48:26,913 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:26,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:26,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1300180027, now seen corresponding path program 1 times [2022-12-13 11:48:26,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:48:26,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259023206] [2022-12-13 11:48:26,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:26,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:48:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:48:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:48:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:48:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:48:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 11:48:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:48:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:48:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:48:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:48:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 11:48:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 11:48:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-12-13 11:48:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:48:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 11:48:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 11:48:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-12-13 11:48:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 11:48:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:48:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 11:48:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:48:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-12-13 11:48:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:48:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-12-13 11:48:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-12-13 11:48:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-12-13 11:48:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-12-13 11:48:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2022-12-13 11:48:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-12-13 11:48:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-12-13 11:48:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2022-12-13 11:48:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-12-13 11:48:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2022-12-13 11:48:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-12-13 11:48:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:48:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-12-13 11:48:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1366 backedges. 61 proven. 72 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2022-12-13 11:48:27,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:48:27,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259023206] [2022-12-13 11:48:27,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259023206] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:48:27,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221097986] [2022-12-13 11:48:27,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:27,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:48:27,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:48:27,524 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:48:27,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-13 11:48:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:27,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 3411 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 11:48:27,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:28,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1366 backedges. 847 proven. 4 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-12-13 11:48:28,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:48:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1366 backedges. 111 proven. 21 refuted. 0 times theorem prover too weak. 1234 trivial. 0 not checked. [2022-12-13 11:48:28,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221097986] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:48:28,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:48:28,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 26 [2022-12-13 11:48:28,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189648177] [2022-12-13 11:48:28,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:48:28,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 11:48:28,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:48:28,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 11:48:28,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2022-12-13 11:48:28,510 INFO L87 Difference]: Start difference. First operand 18164 states and 28607 transitions. Second operand has 26 states, 26 states have (on average 16.384615384615383) internal successors, (426), 19 states have internal predecessors, (426), 11 states have call successors, (106), 9 states have call predecessors, (106), 15 states have return successors, (106), 15 states have call predecessors, (106), 11 states have call successors, (106) [2022-12-13 11:49:01,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:49:01,334 INFO L93 Difference]: Finished difference Result 70439 states and 118305 transitions. [2022-12-13 11:49:01,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-13 11:49:01,335 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 16.384615384615383) internal successors, (426), 19 states have internal predecessors, (426), 11 states have call successors, (106), 9 states have call predecessors, (106), 15 states have return successors, (106), 15 states have call predecessors, (106), 11 states have call successors, (106) Word has length 534 [2022-12-13 11:49:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:49:01,553 INFO L225 Difference]: With dead ends: 70439 [2022-12-13 11:49:01,553 INFO L226 Difference]: Without dead ends: 52320 [2022-12-13 11:49:01,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1245 GetRequests, 1185 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=670, Invalid=2522, Unknown=0, NotChecked=0, Total=3192 [2022-12-13 11:49:01,648 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 10434 mSDsluCounter, 4939 mSDsCounter, 0 mSdLazyCounter, 20264 mSolverCounterSat, 5382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10434 SdHoareTripleChecker+Valid, 5640 SdHoareTripleChecker+Invalid, 25646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5382 IncrementalHoareTripleChecker+Valid, 20264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:49:01,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10434 Valid, 5640 Invalid, 25646 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5382 Valid, 20264 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-12-13 11:49:01,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52320 states. [2022-12-13 11:49:11,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52320 to 38252. [2022-12-13 11:49:11,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38252 states, 30062 states have (on average 1.5541547468564967) internal successors, (46721), 31126 states have internal predecessors, (46721), 5620 states have call successors, (5620), 2247 states have call predecessors, (5620), 2569 states have return successors, (7937), 5574 states have call predecessors, (7937), 5576 states have call successors, (7937) [2022-12-13 11:49:11,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38252 states to 38252 states and 60278 transitions. [2022-12-13 11:49:11,593 INFO L78 Accepts]: Start accepts. Automaton has 38252 states and 60278 transitions. Word has length 534 [2022-12-13 11:49:11,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:49:11,593 INFO L495 AbstractCegarLoop]: Abstraction has 38252 states and 60278 transitions. [2022-12-13 11:49:11,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 16.384615384615383) internal successors, (426), 19 states have internal predecessors, (426), 11 states have call successors, (106), 9 states have call predecessors, (106), 15 states have return successors, (106), 15 states have call predecessors, (106), 11 states have call successors, (106) [2022-12-13 11:49:11,593 INFO L276 IsEmpty]: Start isEmpty. Operand 38252 states and 60278 transitions. [2022-12-13 11:49:11,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2022-12-13 11:49:11,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:49:11,658 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:49:11,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-12-13 11:49:11,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-12-13 11:49:11,860 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:49:11,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:49:11,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1751786398, now seen corresponding path program 1 times [2022-12-13 11:49:11,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:49:11,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985381426] [2022-12-13 11:49:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:49:11,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:49:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:49:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:49:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:49:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:49:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 11:49:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 11:49:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 11:49:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 11:49:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 11:49:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:49:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 11:49:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 11:49:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-12-13 11:49:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:49:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:49:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:49:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 11:49:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:49:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 11:49:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-12-13 11:49:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:49:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 11:49:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:49:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 11:49:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:49:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:49:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-12-13 11:49:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:49:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-12-13 11:49:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-12-13 11:49:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-12-13 11:49:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2022-12-13 11:49:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-12-13 11:49:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-12-13 11:49:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-12-13 11:49:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-12-13 11:49:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2022-12-13 11:49:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-12-13 11:49:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-12-13 11:49:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:49:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-12-13 11:49:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 59 proven. 38 refuted. 0 times theorem prover too weak. 1286 trivial. 0 not checked. [2022-12-13 11:49:12,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:49:12,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985381426] [2022-12-13 11:49:12,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985381426] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:49:12,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063911900] [2022-12-13 11:49:12,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:49:12,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:49:12,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:49:12,438 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:49:12,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a2eae5-b3d8-4155-a431-c3acbbf1e3cf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-13 11:49:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:12,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 3428 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 11:49:12,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:49:13,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 648 proven. 50 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-12-13 11:49:13,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:49:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 134 proven. 54 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2022-12-13 11:49:13,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063911900] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:49:13,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:49:13,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 25 [2022-12-13 11:49:13,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646282662] [2022-12-13 11:49:13,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:49:13,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 11:49:13,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:49:13,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 11:49:13,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2022-12-13 11:49:13,483 INFO L87 Difference]: Start difference. First operand 38252 states and 60278 transitions. Second operand has 25 states, 24 states have (on average 17.458333333333332) internal successors, (419), 20 states have internal predecessors, (419), 13 states have call successors, (107), 10 states have call predecessors, (107), 13 states have return successors, (103), 14 states have call predecessors, (103), 13 states have call successors, (103)