./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product28.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_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/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_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/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_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/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 da76b57a1451220816a27c40b8cda655a945b2081fe69d46a431c484896fab87 --- 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 15:24:03,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:24:03,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:24:03,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:24:03,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:24:03,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:24:03,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:24:03,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:24:03,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:24:03,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:24:03,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:24:03,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:24:03,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:24:03,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:24:04,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:24:04,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:24:04,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:24:04,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:24:04,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:24:04,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:24:04,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:24:04,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:24:04,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:24:04,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:24:04,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:24:04,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:24:04,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:24:04,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:24:04,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:24:04,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:24:04,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:24:04,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:24:04,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:24:04,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:24:04,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:24:04,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:24:04,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:24:04,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:24:04,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:24:04,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:24:04,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:24:04,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:24:04,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:24:04,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:24:04,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:24:04,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:24:04,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:24:04,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:24:04,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:24:04,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:24:04,068 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:24:04,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:24:04,068 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:24:04,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:24:04,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:24:04,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:24:04,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:24:04,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:24:04,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:24:04,069 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:24:04,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:24:04,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:24:04,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:24:04,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:24:04,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:24:04,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:24:04,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:24:04,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:24:04,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:24:04,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:24:04,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:24:04,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:24:04,072 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:24:04,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:24:04,072 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:24:04,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:24:04,073 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:24:04,073 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_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da76b57a1451220816a27c40b8cda655a945b2081fe69d46a431c484896fab87 [2022-12-13 15:24:04,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:24:04,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:24:04,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:24:04,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:24:04,268 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:24:04,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c [2022-12-13 15:24:06,884 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:24:07,070 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:24:07,071 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c [2022-12-13 15:24:07,083 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/data/16ebc7842/65700f5e924946ad88b2cd54e9f0b252/FLAG3253a8a20 [2022-12-13 15:24:07,094 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/data/16ebc7842/65700f5e924946ad88b2cd54e9f0b252 [2022-12-13 15:24:07,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:24:07,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:24:07,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:24:07,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:24:07,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:24:07,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1e1888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07, skipping insertion in model container [2022-12-13 15:24:07,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:24:07,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:24:07,411 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_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c[43703,43716] [2022-12-13 15:24:07,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:24:07,472 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:24:07,523 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_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c[43703,43716] [2022-12-13 15:24:07,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:24:07,561 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:24:07,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07 WrapperNode [2022-12-13 15:24:07,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:24:07,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:24:07,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:24:07,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:24:07,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,617 INFO L138 Inliner]: procedures = 94, calls = 341, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1104 [2022-12-13 15:24:07,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:24:07,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:24:07,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:24:07,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:24:07,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,649 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:24:07,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:24:07,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:24:07,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:24:07,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (1/1) ... [2022-12-13 15:24:07,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:24:07,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:24:07,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:24:07,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:24:07,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:24:07,731 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-12-13 15:24:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-12-13 15:24:07,731 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-12-13 15:24:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-12-13 15:24:07,731 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-12-13 15:24:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-12-13 15:24:07,731 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-12-13 15:24:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-12-13 15:24:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-12-13 15:24:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-12-13 15:24:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-12-13 15:24:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-12-13 15:24:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-12-13 15:24:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-12-13 15:24:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 15:24:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 15:24:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 15:24:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 15:24:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-12-13 15:24:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-12-13 15:24:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-12-13 15:24:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-12-13 15:24:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-12-13 15:24:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-12-13 15:24:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-12-13 15:24:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-12-13 15:24:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-12-13 15:24:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-12-13 15:24:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-12-13 15:24:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-12-13 15:24:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-12-13 15:24:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-12-13 15:24:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-12-13 15:24:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-12-13 15:24:07,735 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-12-13 15:24:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-12-13 15:24:07,735 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-12-13 15:24:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-12-13 15:24:07,735 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-12-13 15:24:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-12-13 15:24:07,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:24:07,735 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-12-13 15:24:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-12-13 15:24:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-12-13 15:24:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-12-13 15:24:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-12-13 15:24:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-12-13 15:24:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:24:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:24:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-12-13 15:24:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-12-13 15:24:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2022-12-13 15:24:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2022-12-13 15:24:07,838 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:24:07,839 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:24:08,559 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:24:08,568 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:24:08,568 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:24:08,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:24:08 BoogieIcfgContainer [2022-12-13 15:24:08,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:24:08,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:24:08,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:24:08,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:24:08,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:24:07" (1/3) ... [2022-12-13 15:24:08,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49170ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:24:08, skipping insertion in model container [2022-12-13 15:24:08,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:24:07" (2/3) ... [2022-12-13 15:24:08,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49170ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:24:08, skipping insertion in model container [2022-12-13 15:24:08,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:24:08" (3/3) ... [2022-12-13 15:24:08,578 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.c [2022-12-13 15:24:08,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:24:08,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 15:24:08,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:24:08,647 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;@1964c950, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:24:08,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 15:24:08,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 554 states, 430 states have (on average 1.672093023255814) internal successors, (719), 448 states have internal predecessors, (719), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2022-12-13 15:24:08,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-13 15:24:08,662 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:08,662 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:08,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:08,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:08,667 INFO L85 PathProgramCache]: Analyzing trace with hash 861521184, now seen corresponding path program 1 times [2022-12-13 15:24:08,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:08,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99105072] [2022-12-13 15:24:08,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:08,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:09,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:09,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:09,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:09,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 15:24:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:09,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 15:24:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:09,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:09,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 15:24:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:09,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 15:24:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:09,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:09,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99105072] [2022-12-13 15:24:09,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99105072] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:09,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:09,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:24:09,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942001685] [2022-12-13 15:24:09,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:09,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:09,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:09,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:09,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:09,169 INFO L87 Difference]: Start difference. First operand has 554 states, 430 states have (on average 1.672093023255814) internal successors, (719), 448 states have internal predecessors, (719), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:12,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:12,008 INFO L93 Difference]: Finished difference Result 1224 states and 2043 transitions. [2022-12-13 15:24:12,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:24:12,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2022-12-13 15:24:12,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:12,023 INFO L225 Difference]: With dead ends: 1224 [2022-12-13 15:24:12,023 INFO L226 Difference]: Without dead ends: 670 [2022-12-13 15:24:12,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:24:12,031 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 664 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:12,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1632 Invalid, 1798 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 15:24:12,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-12-13 15:24:12,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 549. [2022-12-13 15:24:12,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 426 states have (on average 1.6619718309859155) internal successors, (708), 443 states have internal predecessors, (708), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:12,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 901 transitions. [2022-12-13 15:24:12,128 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 901 transitions. Word has length 63 [2022-12-13 15:24:12,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:12,128 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 901 transitions. [2022-12-13 15:24:12,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:12,128 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 901 transitions. [2022-12-13 15:24:12,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 15:24:12,131 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:12,131 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:12,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:24:12,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:12,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:12,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2026902989, now seen corresponding path program 1 times [2022-12-13 15:24:12,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:12,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022763815] [2022-12-13 15:24:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:12,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:12,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:12,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:24:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 15:24:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:12,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:24:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:12,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 15:24:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 15:24:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:12,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:12,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:12,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022763815] [2022-12-13 15:24:12,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022763815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:12,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:12,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:24:12,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211881319] [2022-12-13 15:24:12,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:12,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:12,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:12,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:12,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:12,365 INFO L87 Difference]: Start difference. First operand 549 states and 901 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:14,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:14,835 INFO L93 Difference]: Finished difference Result 1202 states and 1987 transitions. [2022-12-13 15:24:14,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:24:14,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2022-12-13 15:24:14,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:14,839 INFO L225 Difference]: With dead ends: 1202 [2022-12-13 15:24:14,839 INFO L226 Difference]: Without dead ends: 670 [2022-12-13 15:24:14,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:24:14,842 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 656 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:14,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1589 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 15:24:14,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-12-13 15:24:14,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 549. [2022-12-13 15:24:14,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 426 states have (on average 1.65962441314554) internal successors, (707), 443 states have internal predecessors, (707), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:14,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 900 transitions. [2022-12-13 15:24:14,893 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 900 transitions. Word has length 64 [2022-12-13 15:24:14,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:14,893 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 900 transitions. [2022-12-13 15:24:14,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:14,893 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 900 transitions. [2022-12-13 15:24:14,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 15:24:14,895 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:14,895 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:14,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:24:14,895 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:14,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:14,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1702940924, now seen corresponding path program 1 times [2022-12-13 15:24:14,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:14,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940213363] [2022-12-13 15:24:14,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:14,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:15,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:15,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:15,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 15:24:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 15:24:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:24:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 15:24:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 15:24:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:15,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:15,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:15,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940213363] [2022-12-13 15:24:15,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940213363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:15,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:15,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:24:15,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521074382] [2022-12-13 15:24:15,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:15,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:15,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:15,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:15,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:15,065 INFO L87 Difference]: Start difference. First operand 549 states and 900 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:17,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:17,201 INFO L93 Difference]: Finished difference Result 1202 states and 1986 transitions. [2022-12-13 15:24:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:24:17,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2022-12-13 15:24:17,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:17,205 INFO L225 Difference]: With dead ends: 1202 [2022-12-13 15:24:17,205 INFO L226 Difference]: Without dead ends: 670 [2022-12-13 15:24:17,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:24:17,207 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 653 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:17,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1595 Invalid, 1793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 15:24:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-12-13 15:24:17,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 549. [2022-12-13 15:24:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 426 states have (on average 1.6572769953051643) internal successors, (706), 443 states have internal predecessors, (706), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:17,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 899 transitions. [2022-12-13 15:24:17,261 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 899 transitions. Word has length 65 [2022-12-13 15:24:17,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:17,261 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 899 transitions. [2022-12-13 15:24:17,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:17,262 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 899 transitions. [2022-12-13 15:24:17,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-13 15:24:17,263 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:17,263 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:17,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:24:17,263 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:17,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:17,263 INFO L85 PathProgramCache]: Analyzing trace with hash 145697999, now seen corresponding path program 1 times [2022-12-13 15:24:17,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:17,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689946586] [2022-12-13 15:24:17,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:17,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:17,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:17,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:17,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 15:24:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:24:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:17,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:24:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:17,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:17,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 15:24:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:17,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 15:24:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:17,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:17,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689946586] [2022-12-13 15:24:17,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689946586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:17,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:17,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:24:17,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953345359] [2022-12-13 15:24:17,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:17,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:17,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:17,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:17,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:17,421 INFO L87 Difference]: Start difference. First operand 549 states and 899 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:19,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:19,504 INFO L93 Difference]: Finished difference Result 1202 states and 1985 transitions. [2022-12-13 15:24:19,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:24:19,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2022-12-13 15:24:19,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:19,507 INFO L225 Difference]: With dead ends: 1202 [2022-12-13 15:24:19,507 INFO L226 Difference]: Without dead ends: 670 [2022-12-13 15:24:19,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:24:19,509 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 650 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:19,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1720 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 15:24:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-12-13 15:24:19,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 549. [2022-12-13 15:24:19,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 426 states have (on average 1.6549295774647887) internal successors, (705), 443 states have internal predecessors, (705), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:19,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 898 transitions. [2022-12-13 15:24:19,555 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 898 transitions. Word has length 66 [2022-12-13 15:24:19,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:19,555 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 898 transitions. [2022-12-13 15:24:19,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:19,555 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 898 transitions. [2022-12-13 15:24:19,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 15:24:19,556 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:19,556 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:19,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:24:19,556 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:19,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:19,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2102479656, now seen corresponding path program 1 times [2022-12-13 15:24:19,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:19,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208003535] [2022-12-13 15:24:19,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:19,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:19,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:19,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 15:24:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:24:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:24:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:19,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:24:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 15:24:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:19,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:19,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:19,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208003535] [2022-12-13 15:24:19,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208003535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:19,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:19,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:24:19,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681630650] [2022-12-13 15:24:19,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:19,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:19,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:19,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:19,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:19,716 INFO L87 Difference]: Start difference. First operand 549 states and 898 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:22,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:22,205 INFO L93 Difference]: Finished difference Result 1202 states and 1984 transitions. [2022-12-13 15:24:22,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:24:22,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2022-12-13 15:24:22,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:22,209 INFO L225 Difference]: With dead ends: 1202 [2022-12-13 15:24:22,209 INFO L226 Difference]: Without dead ends: 670 [2022-12-13 15:24:22,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:24:22,211 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 647 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:22,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1720 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 15:24:22,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-12-13 15:24:22,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 549. [2022-12-13 15:24:22,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 426 states have (on average 1.6525821596244132) internal successors, (704), 443 states have internal predecessors, (704), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 897 transitions. [2022-12-13 15:24:22,253 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 897 transitions. Word has length 67 [2022-12-13 15:24:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:22,253 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 897 transitions. [2022-12-13 15:24:22,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 897 transitions. [2022-12-13 15:24:22,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 15:24:22,254 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:22,254 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:22,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:24:22,254 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:22,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:22,254 INFO L85 PathProgramCache]: Analyzing trace with hash 169835, now seen corresponding path program 1 times [2022-12-13 15:24:22,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:22,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186257849] [2022-12-13 15:24:22,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:22,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:22,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:22,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:22,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 15:24:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:22,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 15:24:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:22,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:22,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:24:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:22,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 15:24:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:22,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:22,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186257849] [2022-12-13 15:24:22,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186257849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:22,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:22,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:24:22,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765993840] [2022-12-13 15:24:22,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:22,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:24:22,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:22,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:24:22,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:24:22,450 INFO L87 Difference]: Start difference. First operand 549 states and 897 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:24,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:24,993 INFO L93 Difference]: Finished difference Result 1227 states and 2028 transitions. [2022-12-13 15:24:24,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:24:24,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2022-12-13 15:24:24,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:24,996 INFO L225 Difference]: With dead ends: 1227 [2022-12-13 15:24:24,996 INFO L226 Difference]: Without dead ends: 699 [2022-12-13 15:24:24,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:24:24,998 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 764 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 3013 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 3146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:24,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 2456 Invalid, 3146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 3013 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 15:24:24,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-12-13 15:24:25,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 569. [2022-12-13 15:24:25,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 445 states have (on average 1.6471910112359551) internal successors, (733), 462 states have internal predecessors, (733), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:25,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 926 transitions. [2022-12-13 15:24:25,043 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 926 transitions. Word has length 68 [2022-12-13 15:24:25,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:25,043 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 926 transitions. [2022-12-13 15:24:25,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:25,044 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 926 transitions. [2022-12-13 15:24:25,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 15:24:25,044 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:25,045 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:25,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:24:25,045 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:25,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:25,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1006007257, now seen corresponding path program 1 times [2022-12-13 15:24:25,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:25,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781776739] [2022-12-13 15:24:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:25,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:25,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 15:24:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:25,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 15:24:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:25,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:25,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:24:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:25,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 15:24:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:25,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:25,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:25,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781776739] [2022-12-13 15:24:25,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781776739] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:25,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:25,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:24:25,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572824642] [2022-12-13 15:24:25,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:25,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:24:25,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:25,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:24:25,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:24:25,251 INFO L87 Difference]: Start difference. First operand 569 states and 926 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:27,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:27,569 INFO L93 Difference]: Finished difference Result 1211 states and 1979 transitions. [2022-12-13 15:24:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:24:27,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2022-12-13 15:24:27,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:27,572 INFO L225 Difference]: With dead ends: 1211 [2022-12-13 15:24:27,572 INFO L226 Difference]: Without dead ends: 699 [2022-12-13 15:24:27,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:24:27,573 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 739 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 2991 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 3118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:27,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 2423 Invalid, 3118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2991 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 15:24:27,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-12-13 15:24:27,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 569. [2022-12-13 15:24:27,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 445 states have (on average 1.6359550561797753) internal successors, (728), 462 states have internal predecessors, (728), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:27,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 921 transitions. [2022-12-13 15:24:27,616 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 921 transitions. Word has length 69 [2022-12-13 15:24:27,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:27,616 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 921 transitions. [2022-12-13 15:24:27,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:27,616 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 921 transitions. [2022-12-13 15:24:27,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-13 15:24:27,617 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:27,617 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:27,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:24:27,617 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:27,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:27,618 INFO L85 PathProgramCache]: Analyzing trace with hash -2086538832, now seen corresponding path program 1 times [2022-12-13 15:24:27,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:27,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315670242] [2022-12-13 15:24:27,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:27,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:27,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:27,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:27,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:24:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:27,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 15:24:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:27,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 15:24:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:27,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 15:24:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:27,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:27,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315670242] [2022-12-13 15:24:27,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315670242] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:27,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:27,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:24:27,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837709915] [2022-12-13 15:24:27,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:27,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:24:27,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:27,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:24:27,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:24:27,812 INFO L87 Difference]: Start difference. First operand 569 states and 921 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:30,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:30,609 INFO L93 Difference]: Finished difference Result 1211 states and 1974 transitions. [2022-12-13 15:24:30,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:24:30,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2022-12-13 15:24:30,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:30,614 INFO L225 Difference]: With dead ends: 1211 [2022-12-13 15:24:30,614 INFO L226 Difference]: Without dead ends: 699 [2022-12-13 15:24:30,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:24:30,617 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 733 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 2966 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:30,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2423 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2966 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 15:24:30,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-12-13 15:24:30,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 569. [2022-12-13 15:24:30,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 445 states have (on average 1.6247191011235955) internal successors, (723), 462 states have internal predecessors, (723), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:30,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 916 transitions. [2022-12-13 15:24:30,660 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 916 transitions. Word has length 70 [2022-12-13 15:24:30,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:30,660 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 916 transitions. [2022-12-13 15:24:30,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:30,660 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 916 transitions. [2022-12-13 15:24:30,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 15:24:30,662 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:30,662 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:30,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:24:30,662 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:30,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:30,662 INFO L85 PathProgramCache]: Analyzing trace with hash 915012414, now seen corresponding path program 1 times [2022-12-13 15:24:30,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:30,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365875611] [2022-12-13 15:24:30,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:30,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:30,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:30,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:30,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:30,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 15:24:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:30,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 15:24:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:30,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:30,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 15:24:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 15:24:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:30,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:30,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365875611] [2022-12-13 15:24:30,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365875611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:30,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:30,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:24:30,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046051151] [2022-12-13 15:24:30,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:30,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:24:30,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:30,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:24:30,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:24:30,861 INFO L87 Difference]: Start difference. First operand 569 states and 916 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:33,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:33,097 INFO L93 Difference]: Finished difference Result 1211 states and 1969 transitions. [2022-12-13 15:24:33,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:24:33,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-12-13 15:24:33,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:33,101 INFO L225 Difference]: With dead ends: 1211 [2022-12-13 15:24:33,101 INFO L226 Difference]: Without dead ends: 699 [2022-12-13 15:24:33,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:24:33,104 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 727 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 2941 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 3068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:33,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 2434 Invalid, 3068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2941 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 15:24:33,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-12-13 15:24:33,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 569. [2022-12-13 15:24:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 445 states have (on average 1.6134831460674157) internal successors, (718), 462 states have internal predecessors, (718), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:33,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 911 transitions. [2022-12-13 15:24:33,171 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 911 transitions. Word has length 71 [2022-12-13 15:24:33,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:33,172 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 911 transitions. [2022-12-13 15:24:33,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:33,172 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 911 transitions. [2022-12-13 15:24:33,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 15:24:33,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:33,173 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:33,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:24:33,173 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:33,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:33,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2064383585, now seen corresponding path program 1 times [2022-12-13 15:24:33,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:33,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400792097] [2022-12-13 15:24:33,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:33,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:33,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:33,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 15:24:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 15:24:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:33,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:33,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 15:24:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 15:24:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:33,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:33,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:33,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400792097] [2022-12-13 15:24:33,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400792097] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:33,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:33,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:24:33,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609801439] [2022-12-13 15:24:33,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:33,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:33,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:33,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:33,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:33,361 INFO L87 Difference]: Start difference. First operand 569 states and 911 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:36,179 INFO L93 Difference]: Finished difference Result 1238 states and 2003 transitions. [2022-12-13 15:24:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:24:36,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-12-13 15:24:36,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:36,182 INFO L225 Difference]: With dead ends: 1238 [2022-12-13 15:24:36,182 INFO L226 Difference]: Without dead ends: 732 [2022-12-13 15:24:36,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:24:36,184 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 710 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:36,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1552 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 15:24:36,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-12-13 15:24:36,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 573. [2022-12-13 15:24:36,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 449 states have (on average 1.6080178173719377) internal successors, (722), 466 states have internal predecessors, (722), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:36,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 915 transitions. [2022-12-13 15:24:36,255 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 915 transitions. Word has length 71 [2022-12-13 15:24:36,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:36,256 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 915 transitions. [2022-12-13 15:24:36,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:36,256 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 915 transitions. [2022-12-13 15:24:36,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-13 15:24:36,257 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:36,257 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:36,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:24:36,257 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:36,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:36,258 INFO L85 PathProgramCache]: Analyzing trace with hash -439947275, now seen corresponding path program 1 times [2022-12-13 15:24:36,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:36,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818144521] [2022-12-13 15:24:36,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:36,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:36,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:36,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:24:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:36,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:24:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:36,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 15:24:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:24:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:36,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:36,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:36,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818144521] [2022-12-13 15:24:36,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818144521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:36,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:36,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:24:36,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523318150] [2022-12-13 15:24:36,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:36,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:24:36,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:36,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:24:36,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:24:36,476 INFO L87 Difference]: Start difference. First operand 573 states and 915 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:38,892 INFO L93 Difference]: Finished difference Result 1221 states and 1973 transitions. [2022-12-13 15:24:38,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:24:38,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2022-12-13 15:24:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:38,896 INFO L225 Difference]: With dead ends: 1221 [2022-12-13 15:24:38,896 INFO L226 Difference]: Without dead ends: 705 [2022-12-13 15:24:38,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:24:38,898 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 721 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:38,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 2429 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 15:24:38,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2022-12-13 15:24:38,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 573. [2022-12-13 15:24:38,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 449 states have (on average 1.5968819599109132) internal successors, (717), 466 states have internal predecessors, (717), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:38,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 910 transitions. [2022-12-13 15:24:38,938 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 910 transitions. Word has length 72 [2022-12-13 15:24:38,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:38,939 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 910 transitions. [2022-12-13 15:24:38,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:38,939 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 910 transitions. [2022-12-13 15:24:38,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-13 15:24:38,939 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:38,940 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:38,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:24:38,940 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:38,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:38,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1955223986, now seen corresponding path program 1 times [2022-12-13 15:24:38,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:38,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088717880] [2022-12-13 15:24:38,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:38,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:39,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:39,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:39,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:39,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:24:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:24:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:39,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 15:24:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:24:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:39,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:39,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088717880] [2022-12-13 15:24:39,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088717880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:39,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:39,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:24:39,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041348138] [2022-12-13 15:24:39,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:39,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:39,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:39,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:39,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:39,078 INFO L87 Difference]: Start difference. First operand 573 states and 910 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:41,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:41,223 INFO L93 Difference]: Finished difference Result 1246 states and 2002 transitions. [2022-12-13 15:24:41,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:24:41,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2022-12-13 15:24:41,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:41,225 INFO L225 Difference]: With dead ends: 1246 [2022-12-13 15:24:41,225 INFO L226 Difference]: Without dead ends: 738 [2022-12-13 15:24:41,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:24:41,227 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 713 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:41,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1539 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 15:24:41,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-12-13 15:24:41,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 579. [2022-12-13 15:24:41,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 455 states have (on average 1.589010989010989) internal successors, (723), 472 states have internal predecessors, (723), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:41,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 916 transitions. [2022-12-13 15:24:41,278 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 916 transitions. Word has length 72 [2022-12-13 15:24:41,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:41,278 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 916 transitions. [2022-12-13 15:24:41,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:41,278 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 916 transitions. [2022-12-13 15:24:41,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-13 15:24:41,279 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:41,279 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:41,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 15:24:41,279 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:41,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:41,280 INFO L85 PathProgramCache]: Analyzing trace with hash 592207523, now seen corresponding path program 1 times [2022-12-13 15:24:41,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:41,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239955236] [2022-12-13 15:24:41,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:41,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:41,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:41,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:41,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:41,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:24:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 15:24:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:41,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:41,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 15:24:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:41,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 15:24:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:41,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:41,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:41,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239955236] [2022-12-13 15:24:41,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239955236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:41,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:41,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 15:24:41,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646037652] [2022-12-13 15:24:41,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:41,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:24:41,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:41,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:24:41,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:24:41,465 INFO L87 Difference]: Start difference. First operand 579 states and 916 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 15:24:44,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:44,343 INFO L93 Difference]: Finished difference Result 1251 states and 2005 transitions. [2022-12-13 15:24:44,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 15:24:44,343 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2022-12-13 15:24:44,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:44,345 INFO L225 Difference]: With dead ends: 1251 [2022-12-13 15:24:44,345 INFO L226 Difference]: Without dead ends: 743 [2022-12-13 15:24:44,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-12-13 15:24:44,347 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 736 mSDsluCounter, 3474 mSDsCounter, 0 mSdLazyCounter, 4463 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 4007 SdHoareTripleChecker+Invalid, 4589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 4463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:44,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 4007 Invalid, 4589 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [126 Valid, 4463 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 15:24:44,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-12-13 15:24:44,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 590. [2022-12-13 15:24:44,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 463 states have (on average 1.5853131749460043) internal successors, (734), 482 states have internal predecessors, (734), 98 states have call successors, (98), 27 states have call predecessors, (98), 28 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2022-12-13 15:24:44,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 931 transitions. [2022-12-13 15:24:44,391 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 931 transitions. Word has length 73 [2022-12-13 15:24:44,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:44,391 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 931 transitions. [2022-12-13 15:24:44,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 15:24:44,392 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 931 transitions. [2022-12-13 15:24:44,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-13 15:24:44,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:44,392 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:44,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 15:24:44,393 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:44,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:44,393 INFO L85 PathProgramCache]: Analyzing trace with hash -234476092, now seen corresponding path program 1 times [2022-12-13 15:24:44,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:44,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140480162] [2022-12-13 15:24:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:44,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:44,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:44,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:44,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:44,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:24:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:44,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 15:24:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:44,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:44,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 15:24:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:44,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 15:24:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:44,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:44,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:44,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140480162] [2022-12-13 15:24:44,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140480162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:44,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:44,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:24:44,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178357313] [2022-12-13 15:24:44,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:44,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:44,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:44,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:44,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:44,528 INFO L87 Difference]: Start difference. First operand 590 states and 931 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:46,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:46,742 INFO L93 Difference]: Finished difference Result 1279 states and 2043 transitions. [2022-12-13 15:24:46,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:24:46,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-12-13 15:24:46,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:46,747 INFO L225 Difference]: With dead ends: 1279 [2022-12-13 15:24:46,748 INFO L226 Difference]: Without dead ends: 765 [2022-12-13 15:24:46,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:24:46,749 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 709 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:46,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1541 Invalid, 1825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 15:24:46,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-12-13 15:24:46,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 598. [2022-12-13 15:24:46,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 471 states have (on average 1.5732484076433122) internal successors, (741), 490 states have internal predecessors, (741), 98 states have call successors, (98), 27 states have call predecessors, (98), 28 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2022-12-13 15:24:46,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 938 transitions. [2022-12-13 15:24:46,794 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 938 transitions. Word has length 73 [2022-12-13 15:24:46,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:46,794 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 938 transitions. [2022-12-13 15:24:46,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:46,795 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 938 transitions. [2022-12-13 15:24:46,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-13 15:24:46,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:46,795 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:46,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 15:24:46,796 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:46,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:46,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1222666148, now seen corresponding path program 1 times [2022-12-13 15:24:46,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:46,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732929550] [2022-12-13 15:24:46,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:46,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:46,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:46,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:46,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:24:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:46,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 15:24:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:46,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:46,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 15:24:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:46,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 15:24:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:46,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:46,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732929550] [2022-12-13 15:24:46,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732929550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:46,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:46,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:24:46,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068164874] [2022-12-13 15:24:46,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:46,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:46,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:46,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:46,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:46,934 INFO L87 Difference]: Start difference. First operand 598 states and 938 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:49,470 INFO L93 Difference]: Finished difference Result 1317 states and 2081 transitions. [2022-12-13 15:24:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:24:49,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-12-13 15:24:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:49,472 INFO L225 Difference]: With dead ends: 1317 [2022-12-13 15:24:49,472 INFO L226 Difference]: Without dead ends: 716 [2022-12-13 15:24:49,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:24:49,474 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 647 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:49,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1650 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 15:24:49,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-12-13 15:24:49,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 579. [2022-12-13 15:24:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 455 states have (on average 1.578021978021978) internal successors, (718), 472 states have internal predecessors, (718), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 911 transitions. [2022-12-13 15:24:49,515 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 911 transitions. Word has length 73 [2022-12-13 15:24:49,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:49,515 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 911 transitions. [2022-12-13 15:24:49,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:49,515 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 911 transitions. [2022-12-13 15:24:49,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-13 15:24:49,516 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:49,516 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:49,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 15:24:49,516 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:49,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:49,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1639184969, now seen corresponding path program 1 times [2022-12-13 15:24:49,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:49,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532744833] [2022-12-13 15:24:49,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:49,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:49,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:49,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:49,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:49,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:24:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:49,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:24:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:49,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 15:24:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 15:24:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:49,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:49,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532744833] [2022-12-13 15:24:49,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532744833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:49,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:49,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:24:49,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997789203] [2022-12-13 15:24:49,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:49,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:49,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:49,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:49,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:49,671 INFO L87 Difference]: Start difference. First operand 579 states and 911 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:52,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:52,005 INFO L93 Difference]: Finished difference Result 1264 states and 2006 transitions. [2022-12-13 15:24:52,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:24:52,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2022-12-13 15:24:52,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:52,009 INFO L225 Difference]: With dead ends: 1264 [2022-12-13 15:24:52,009 INFO L226 Difference]: Without dead ends: 749 [2022-12-13 15:24:52,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:24:52,011 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 691 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:52,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1537 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 15:24:52,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-12-13 15:24:52,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 589. [2022-12-13 15:24:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 465 states have (on average 1.5655913978494624) internal successors, (728), 482 states have internal predecessors, (728), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-13 15:24:52,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 921 transitions. [2022-12-13 15:24:52,060 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 921 transitions. Word has length 74 [2022-12-13 15:24:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:52,060 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 921 transitions. [2022-12-13 15:24:52,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 15:24:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 921 transitions. [2022-12-13 15:24:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 15:24:52,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:52,061 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:24:52,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 15:24:52,061 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:52,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash 102707193, now seen corresponding path program 1 times [2022-12-13 15:24:52,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:52,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873634087] [2022-12-13 15:24:52,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:52,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:52,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:52,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:52,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:52,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:24:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:52,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 15:24:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:52,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 15:24:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 15:24:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:24:52,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:52,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873634087] [2022-12-13 15:24:52,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873634087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:52,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:24:52,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:24:52,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416292447] [2022-12-13 15:24:52,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:52,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:24:52,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:52,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:24:52,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:24:52,200 INFO L87 Difference]: Start difference. First operand 589 states and 921 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 15:24:55,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:55,412 INFO L93 Difference]: Finished difference Result 1842 states and 2964 transitions. [2022-12-13 15:24:55,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:24:55,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2022-12-13 15:24:55,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:55,417 INFO L225 Difference]: With dead ends: 1842 [2022-12-13 15:24:55,417 INFO L226 Difference]: Without dead ends: 1329 [2022-12-13 15:24:55,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:24:55,419 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 1861 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:55,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1959 Valid, 1172 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 15:24:55,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-12-13 15:24:55,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1026. [2022-12-13 15:24:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 810 states have (on average 1.5901234567901235) internal successors, (1288), 836 states have internal predecessors, (1288), 170 states have call successors, (170), 47 states have call predecessors, (170), 45 states have return successors, (175), 157 states have call predecessors, (175), 168 states have call successors, (175) [2022-12-13 15:24:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1633 transitions. [2022-12-13 15:24:55,524 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1633 transitions. Word has length 75 [2022-12-13 15:24:55,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:55,524 INFO L495 AbstractCegarLoop]: Abstraction has 1026 states and 1633 transitions. [2022-12-13 15:24:55,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 15:24:55,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1633 transitions. [2022-12-13 15:24:55,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-13 15:24:55,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:55,526 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:24:55,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 15:24:55,527 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:55,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:55,527 INFO L85 PathProgramCache]: Analyzing trace with hash -211247494, now seen corresponding path program 1 times [2022-12-13 15:24:55,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:55,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057579811] [2022-12-13 15:24:55,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:55,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:24:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 15:24:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 15:24:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 15:24:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 15:24:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:24:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 15:24:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:24:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-13 15:24:55,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:55,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057579811] [2022-12-13 15:24:55,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057579811] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:24:55,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420539938] [2022-12-13 15:24:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:55,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:24:55,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:24:55,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:24:55,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:24:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:56,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:24:56,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:24:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 15:24:56,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:24:56,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420539938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:56,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:24:56,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-12-13 15:24:56,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533889532] [2022-12-13 15:24:56,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:56,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:24:56,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:56,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:24:56,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:24:56,061 INFO L87 Difference]: Start difference. First operand 1026 states and 1633 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:24:56,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:56,257 INFO L93 Difference]: Finished difference Result 2914 states and 4759 transitions. [2022-12-13 15:24:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:24:56,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2022-12-13 15:24:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:56,264 INFO L225 Difference]: With dead ends: 2914 [2022-12-13 15:24:56,264 INFO L226 Difference]: Without dead ends: 1965 [2022-12-13 15:24:56,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:24:56,267 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 867 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1787 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 15:24:56,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1787 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:24:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2022-12-13 15:24:56,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1953. [2022-12-13 15:24:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1953 states, 1538 states have (on average 1.605331599479844) internal successors, (2469), 1587 states have internal predecessors, (2469), 327 states have call successors, (327), 89 states have call predecessors, (327), 87 states have return successors, (366), 306 states have call predecessors, (366), 323 states have call successors, (366) [2022-12-13 15:24:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 3162 transitions. [2022-12-13 15:24:56,447 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 3162 transitions. Word has length 127 [2022-12-13 15:24:56,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:56,447 INFO L495 AbstractCegarLoop]: Abstraction has 1953 states and 3162 transitions. [2022-12-13 15:24:56,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:24:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 3162 transitions. [2022-12-13 15:24:56,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-13 15:24:56,449 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:56,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:24:56,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-13 15:24:56,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 15:24:56,650 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:56,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:56,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1578830605, now seen corresponding path program 1 times [2022-12-13 15:24:56,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:56,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200418156] [2022-12-13 15:24:56,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:56,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:56,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:24:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:56,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:24:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:56,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:56,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 15:24:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 15:24:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 15:24:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:24:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 15:24:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 15:24:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,078 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 15:24:57,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:57,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200418156] [2022-12-13 15:24:57,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200418156] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:24:57,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896056543] [2022-12-13 15:24:57,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:57,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:24:57,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:24:57,079 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:24:57,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:24:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:57,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:24:57,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:24:57,372 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 15:24:57,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:24:57,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896056543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:57,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:24:57,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-12-13 15:24:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387714427] [2022-12-13 15:24:57,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:57,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:24:57,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:24:57,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-12-13 15:24:57,374 INFO L87 Difference]: Start difference. First operand 1953 states and 3162 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:24:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:58,022 INFO L93 Difference]: Finished difference Result 3862 states and 6413 transitions. [2022-12-13 15:24:58,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:24:58,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2022-12-13 15:24:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:58,029 INFO L225 Difference]: With dead ends: 3862 [2022-12-13 15:24:58,029 INFO L226 Difference]: Without dead ends: 1985 [2022-12-13 15:24:58,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-12-13 15:24:58,035 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 803 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:58,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 2148 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 15:24:58,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2022-12-13 15:24:58,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1985. [2022-12-13 15:24:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1985 states, 1566 states have (on average 1.60727969348659) internal successors, (2517), 1615 states have internal predecessors, (2517), 327 states have call successors, (327), 93 states have call predecessors, (327), 91 states have return successors, (370), 306 states have call predecessors, (370), 323 states have call successors, (370) [2022-12-13 15:24:58,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 3214 transitions. [2022-12-13 15:24:58,213 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 3214 transitions. Word has length 128 [2022-12-13 15:24:58,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:58,213 INFO L495 AbstractCegarLoop]: Abstraction has 1985 states and 3214 transitions. [2022-12-13 15:24:58,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:24:58,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 3214 transitions. [2022-12-13 15:24:58,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-13 15:24:58,215 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:58,215 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:24:58,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 15:24:58,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:24:58,416 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:58,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:58,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1324400244, now seen corresponding path program 1 times [2022-12-13 15:24:58,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:58,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125004546] [2022-12-13 15:24:58,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:58,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:24:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:24:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:24:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 15:24:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:24:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:24:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 15:24:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 15:24:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:24:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 15:24:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 15:24:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 15:24:58,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:58,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125004546] [2022-12-13 15:24:58,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125004546] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:24:58,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836768466] [2022-12-13 15:24:58,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:58,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:24:58,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:24:58,732 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:24:58,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:24:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:58,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:24:58,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:24:58,973 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 15:24:58,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:24:58,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836768466] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:24:58,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:24:58,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2022-12-13 15:24:58,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343895862] [2022-12-13 15:24:58,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:24:58,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:24:58,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:58,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:24:58,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-12-13 15:24:58,975 INFO L87 Difference]: Start difference. First operand 1985 states and 3214 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 15:24:59,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:59,793 INFO L93 Difference]: Finished difference Result 5134 states and 8314 transitions. [2022-12-13 15:24:59,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:24:59,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2022-12-13 15:24:59,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:59,803 INFO L225 Difference]: With dead ends: 5134 [2022-12-13 15:24:59,803 INFO L226 Difference]: Without dead ends: 3225 [2022-12-13 15:24:59,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-12-13 15:24:59,809 INFO L413 NwaCegarLoop]: 1171 mSDtfsCounter, 848 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 4891 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:59,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 4891 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 15:24:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2022-12-13 15:25:00,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 3219. [2022-12-13 15:25:00,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3219 states, 2530 states have (on average 1.5648221343873518) internal successors, (3959), 2583 states have internal predecessors, (3959), 525 states have call successors, (525), 159 states have call predecessors, (525), 163 states have return successors, (664), 508 states have call predecessors, (664), 517 states have call successors, (664) [2022-12-13 15:25:00,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3219 states to 3219 states and 5148 transitions. [2022-12-13 15:25:00,118 INFO L78 Accepts]: Start accepts. Automaton has 3219 states and 5148 transitions. Word has length 130 [2022-12-13 15:25:00,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:25:00,118 INFO L495 AbstractCegarLoop]: Abstraction has 3219 states and 5148 transitions. [2022-12-13 15:25:00,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 15:25:00,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3219 states and 5148 transitions. [2022-12-13 15:25:00,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-13 15:25:00,121 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:25:00,121 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:25:00,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 15:25:00,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:00,322 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:25:00,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:25:00,323 INFO L85 PathProgramCache]: Analyzing trace with hash 388925211, now seen corresponding path program 1 times [2022-12-13 15:25:00,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:25:00,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358746851] [2022-12-13 15:25:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:00,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:25:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:25:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:25:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:25:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:25:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:25:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 15:25:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 15:25:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 15:25:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 15:25:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,743 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 15:25:00,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:25:00,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358746851] [2022-12-13 15:25:00,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358746851] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:25:00,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819711719] [2022-12-13 15:25:00,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:00,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:00,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:25:00,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:25:00,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 15:25:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:00,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:25:00,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:25:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 15:25:01,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:25:01,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819711719] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:25:01,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:25:01,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-12-13 15:25:01,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576331949] [2022-12-13 15:25:01,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:25:01,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:25:01,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:25:01,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:25:01,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-12-13 15:25:01,053 INFO L87 Difference]: Start difference. First operand 3219 states and 5148 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:25:01,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:25:01,733 INFO L93 Difference]: Finished difference Result 6426 states and 10599 transitions. [2022-12-13 15:25:01,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:25:01,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2022-12-13 15:25:01,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:25:01,743 INFO L225 Difference]: With dead ends: 6426 [2022-12-13 15:25:01,743 INFO L226 Difference]: Without dead ends: 3283 [2022-12-13 15:25:01,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-12-13 15:25:01,754 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 798 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:25:01,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 2148 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 15:25:01,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states. [2022-12-13 15:25:02,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 3283. [2022-12-13 15:25:02,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 2586 states have (on average 1.5680587780355761) internal successors, (4055), 2639 states have internal predecessors, (4055), 525 states have call successors, (525), 167 states have call predecessors, (525), 171 states have return successors, (672), 508 states have call predecessors, (672), 517 states have call successors, (672) [2022-12-13 15:25:02,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 5252 transitions. [2022-12-13 15:25:02,099 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 5252 transitions. Word has length 131 [2022-12-13 15:25:02,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:25:02,099 INFO L495 AbstractCegarLoop]: Abstraction has 3283 states and 5252 transitions. [2022-12-13 15:25:02,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:25:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 5252 transitions. [2022-12-13 15:25:02,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 15:25:02,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:25:02,103 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:25:02,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 15:25:02,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:02,305 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:25:02,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:25:02,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2128821267, now seen corresponding path program 1 times [2022-12-13 15:25:02,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:25:02,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230749021] [2022-12-13 15:25:02,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:02,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:25:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:25:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:25:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:25:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 15:25:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 15:25:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 15:25:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 15:25:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:25:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 15:25:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-13 15:25:02,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:25:02,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230749021] [2022-12-13 15:25:02,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230749021] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:25:02,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307760295] [2022-12-13 15:25:02,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:02,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:02,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:25:02,671 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:25:02,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 15:25:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:02,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:25:02,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:25:02,944 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-13 15:25:02,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:25:02,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307760295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:25:02,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:25:02,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-12-13 15:25:02,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973724835] [2022-12-13 15:25:02,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:25:02,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:25:02,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:25:02,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:25:02,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-12-13 15:25:02,947 INFO L87 Difference]: Start difference. First operand 3283 states and 5252 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:25:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:25:03,627 INFO L93 Difference]: Finished difference Result 6554 states and 10783 transitions. [2022-12-13 15:25:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:25:03,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2022-12-13 15:25:03,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:25:03,638 INFO L225 Difference]: With dead ends: 6554 [2022-12-13 15:25:03,638 INFO L226 Difference]: Without dead ends: 3347 [2022-12-13 15:25:03,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-12-13 15:25:03,647 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 799 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:25:03,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 2148 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 15:25:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2022-12-13 15:25:03,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3347. [2022-12-13 15:25:03,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3347 states, 2642 states have (on average 1.5711582134746405) internal successors, (4151), 2695 states have internal predecessors, (4151), 525 states have call successors, (525), 175 states have call predecessors, (525), 179 states have return successors, (680), 508 states have call predecessors, (680), 517 states have call successors, (680) [2022-12-13 15:25:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 5356 transitions. [2022-12-13 15:25:03,962 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 5356 transitions. Word has length 134 [2022-12-13 15:25:03,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:25:03,963 INFO L495 AbstractCegarLoop]: Abstraction has 3347 states and 5356 transitions. [2022-12-13 15:25:03,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:25:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 5356 transitions. [2022-12-13 15:25:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 15:25:03,965 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:25:03,965 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:25:03,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 15:25:04,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:04,166 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:25:04,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:25:04,167 INFO L85 PathProgramCache]: Analyzing trace with hash 385245007, now seen corresponding path program 1 times [2022-12-13 15:25:04,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:25:04,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600810716] [2022-12-13 15:25:04,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:04,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:25:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:25:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:25:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:25:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 15:25:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:25:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 15:25:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 15:25:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 15:25:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 15:25:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,646 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 15:25:04,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:25:04,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600810716] [2022-12-13 15:25:04,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600810716] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:25:04,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869700622] [2022-12-13 15:25:04,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:04,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:04,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:25:04,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:25:04,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 15:25:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:04,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:25:04,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:25:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 15:25:04,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:25:04,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869700622] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:25:04,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:25:04,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-12-13 15:25:04,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776123231] [2022-12-13 15:25:04,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:25:04,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:25:04,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:25:04,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:25:04,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-12-13 15:25:04,922 INFO L87 Difference]: Start difference. First operand 3347 states and 5356 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:25:05,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:25:05,580 INFO L93 Difference]: Finished difference Result 6682 states and 10967 transitions. [2022-12-13 15:25:05,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:25:05,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2022-12-13 15:25:05,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:25:05,592 INFO L225 Difference]: With dead ends: 6682 [2022-12-13 15:25:05,593 INFO L226 Difference]: Without dead ends: 3411 [2022-12-13 15:25:05,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-12-13 15:25:05,603 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 807 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:25:05,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 2148 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 15:25:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2022-12-13 15:25:05,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 3411. [2022-12-13 15:25:05,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3411 states, 2698 states have (on average 1.5741289844329132) internal successors, (4247), 2751 states have internal predecessors, (4247), 525 states have call successors, (525), 183 states have call predecessors, (525), 187 states have return successors, (688), 508 states have call predecessors, (688), 517 states have call successors, (688) [2022-12-13 15:25:05,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 5460 transitions. [2022-12-13 15:25:05,931 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 5460 transitions. Word has length 137 [2022-12-13 15:25:05,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:25:05,931 INFO L495 AbstractCegarLoop]: Abstraction has 3411 states and 5460 transitions. [2022-12-13 15:25:05,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:25:05,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 5460 transitions. [2022-12-13 15:25:05,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-12-13 15:25:05,933 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:25:05,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:25:05,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 15:25:06,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-13 15:25:06,135 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:25:06,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:25:06,136 INFO L85 PathProgramCache]: Analyzing trace with hash -323803479, now seen corresponding path program 1 times [2022-12-13 15:25:06,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:25:06,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773305167] [2022-12-13 15:25:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:06,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:25:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:25:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:25:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:25:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:25:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 15:25:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 15:25:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 15:25:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 15:25:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 15:25:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,622 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 15:25:06,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:25:06,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773305167] [2022-12-13 15:25:06,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773305167] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:25:06,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833931529] [2022-12-13 15:25:06,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:06,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:06,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:25:06,623 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:25:06,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 15:25:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:06,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 15:25:06,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:25:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:25:06,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:25:06,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833931529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:25:06,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:25:06,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 20 [2022-12-13 15:25:06,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753815147] [2022-12-13 15:25:06,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:25:06,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:25:06,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:25:06,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:25:06,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-12-13 15:25:06,967 INFO L87 Difference]: Start difference. First operand 3411 states and 5460 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-12-13 15:25:08,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:25:08,435 INFO L93 Difference]: Finished difference Result 6898 states and 11097 transitions. [2022-12-13 15:25:08,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:25:08,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 140 [2022-12-13 15:25:08,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:25:08,449 INFO L225 Difference]: With dead ends: 6898 [2022-12-13 15:25:08,449 INFO L226 Difference]: Without dead ends: 3568 [2022-12-13 15:25:08,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-12-13 15:25:08,456 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1485 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 2447 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 2812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 2447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:25:08,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1592 Valid, 1116 Invalid, 2812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 2447 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 15:25:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2022-12-13 15:25:08,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3298. [2022-12-13 15:25:08,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 2512 states have (on average 1.543391719745223) internal successors, (3877), 2603 states have internal predecessors, (3877), 606 states have call successors, (606), 169 states have call predecessors, (606), 179 states have return successors, (746), 577 states have call predecessors, (746), 598 states have call successors, (746) [2022-12-13 15:25:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 5229 transitions. [2022-12-13 15:25:08,776 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 5229 transitions. Word has length 140 [2022-12-13 15:25:08,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:25:08,777 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 5229 transitions. [2022-12-13 15:25:08,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-12-13 15:25:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 5229 transitions. [2022-12-13 15:25:08,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-12-13 15:25:08,779 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:25:08,780 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:25:08,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 15:25:08,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-13 15:25:08,980 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:25:08,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:25:08,981 INFO L85 PathProgramCache]: Analyzing trace with hash 408163947, now seen corresponding path program 1 times [2022-12-13 15:25:08,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:25:08,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141002073] [2022-12-13 15:25:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:25:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:25:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:25:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:25:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:25:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 15:25:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 15:25:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 15:25:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 15:25:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 15:25:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 15:25:09,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:25:09,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141002073] [2022-12-13 15:25:09,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141002073] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:25:09,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313813123] [2022-12-13 15:25:09,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:09,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:09,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:25:09,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:25:09,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 15:25:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:09,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 15:25:09,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:25:09,777 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 15:25:09,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:25:09,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313813123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:25:09,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:25:09,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 22 [2022-12-13 15:25:09,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839959523] [2022-12-13 15:25:09,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:25:09,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:25:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:25:09,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:25:09,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-12-13 15:25:09,780 INFO L87 Difference]: Start difference. First operand 3298 states and 5229 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-12-13 15:25:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:25:12,262 INFO L93 Difference]: Finished difference Result 7639 states and 12220 transitions. [2022-12-13 15:25:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 15:25:12,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 140 [2022-12-13 15:25:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:25:12,276 INFO L225 Difference]: With dead ends: 7639 [2022-12-13 15:25:12,276 INFO L226 Difference]: Without dead ends: 4419 [2022-12-13 15:25:12,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=981, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 15:25:12,286 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 2929 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 4908 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3021 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 5564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 4908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:25:12,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3021 Valid, 2457 Invalid, 5564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 4908 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 15:25:12,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4419 states. [2022-12-13 15:25:12,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4419 to 3824. [2022-12-13 15:25:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3824 states, 2904 states have (on average 1.5457988980716253) internal successors, (4489), 3017 states have internal predecessors, (4489), 696 states have call successors, (696), 191 states have call predecessors, (696), 223 states have return successors, (891), 667 states have call predecessors, (891), 688 states have call successors, (891) [2022-12-13 15:25:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3824 states to 3824 states and 6076 transitions. [2022-12-13 15:25:12,673 INFO L78 Accepts]: Start accepts. Automaton has 3824 states and 6076 transitions. Word has length 140 [2022-12-13 15:25:12,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:25:12,673 INFO L495 AbstractCegarLoop]: Abstraction has 3824 states and 6076 transitions. [2022-12-13 15:25:12,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-12-13 15:25:12,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3824 states and 6076 transitions. [2022-12-13 15:25:12,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-12-13 15:25:12,675 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:25:12,675 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:25:12,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 15:25:12,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-13 15:25:12,876 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:25:12,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:25:12,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1808790549, now seen corresponding path program 1 times [2022-12-13 15:25:12,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:25:12,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020314001] [2022-12-13 15:25:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:12,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:25:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:25:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:25:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:25:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:25:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 15:25:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:25:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:25:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 15:25:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 15:25:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 15:25:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,291 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-13 15:25:13,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:25:13,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020314001] [2022-12-13 15:25:13,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020314001] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:25:13,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102097552] [2022-12-13 15:25:13,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:13,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:13,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:25:13,292 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:25:13,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 15:25:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:13,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 15:25:13,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:25:13,554 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 15:25:13,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:25:13,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102097552] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:25:13,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:25:13,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2022-12-13 15:25:13,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423478875] [2022-12-13 15:25:13,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:25:13,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:25:13,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:25:13,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:25:13,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-12-13 15:25:13,556 INFO L87 Difference]: Start difference. First operand 3824 states and 6076 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 15:25:16,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:25:16,876 INFO L93 Difference]: Finished difference Result 10329 states and 16779 transitions. [2022-12-13 15:25:16,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 15:25:16,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 142 [2022-12-13 15:25:16,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:25:16,899 INFO L225 Difference]: With dead ends: 10329 [2022-12-13 15:25:16,899 INFO L226 Difference]: Without dead ends: 6583 [2022-12-13 15:25:16,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2022-12-13 15:25:16,910 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 2696 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 6429 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2797 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 7200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 6429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:25:16,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2797 Valid, 2361 Invalid, 7200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 6429 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 15:25:16,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2022-12-13 15:25:17,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 5961. [2022-12-13 15:25:17,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5961 states, 4512 states have (on average 1.551418439716312) internal successors, (7000), 4698 states have internal predecessors, (7000), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 364 states have return successors, (1508), 1048 states have call predecessors, (1508), 1076 states have call successors, (1508) [2022-12-13 15:25:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5961 states to 5961 states and 9592 transitions. [2022-12-13 15:25:17,518 INFO L78 Accepts]: Start accepts. Automaton has 5961 states and 9592 transitions. Word has length 142 [2022-12-13 15:25:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:25:17,518 INFO L495 AbstractCegarLoop]: Abstraction has 5961 states and 9592 transitions. [2022-12-13 15:25:17,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 15:25:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5961 states and 9592 transitions. [2022-12-13 15:25:17,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 15:25:17,520 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:25:17,520 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:25:17,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 15:25:17,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 15:25:17,721 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:25:17,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:25:17,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2003295559, now seen corresponding path program 1 times [2022-12-13 15:25:17,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:25:17,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669535304] [2022-12-13 15:25:17,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:17,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:25:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:17,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:25:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:17,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:17,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:25:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:17,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:25:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:25:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 15:25:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:25:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:25:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 15:25:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 15:25:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 15:25:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 15:25:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:18,111 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-12-13 15:25:18,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:25:18,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669535304] [2022-12-13 15:25:18,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669535304] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:25:18,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:25:18,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 15:25:18,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202009924] [2022-12-13 15:25:18,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:25:18,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:25:18,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:25:18,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:25:18,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:25:18,112 INFO L87 Difference]: Start difference. First operand 5961 states and 9592 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 15:25:37,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:25:37,397 INFO L93 Difference]: Finished difference Result 27713 states and 46514 transitions. [2022-12-13 15:25:37,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 15:25:37,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 147 [2022-12-13 15:25:37,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:25:37,476 INFO L225 Difference]: With dead ends: 27713 [2022-12-13 15:25:37,476 INFO L226 Difference]: Without dead ends: 21834 [2022-12-13 15:25:37,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2022-12-13 15:25:37,501 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 8461 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 6666 mSolverCounterSat, 5119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8521 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 11785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5119 IncrementalHoareTripleChecker+Valid, 6666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:25:37,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8521 Valid, 1930 Invalid, 11785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5119 Valid, 6666 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2022-12-13 15:25:37,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21834 states. [2022-12-13 15:25:38,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21834 to 6005. [2022-12-13 15:25:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6005 states, 4544 states have (on average 1.5484154929577465) internal successors, (7036), 4726 states have internal predecessors, (7036), 1096 states have call successors, (1096), 291 states have call predecessors, (1096), 364 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-12-13 15:25:38,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6005 states to 6005 states and 9626 transitions. [2022-12-13 15:25:38,893 INFO L78 Accepts]: Start accepts. Automaton has 6005 states and 9626 transitions. Word has length 147 [2022-12-13 15:25:38,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:25:38,893 INFO L495 AbstractCegarLoop]: Abstraction has 6005 states and 9626 transitions. [2022-12-13 15:25:38,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 15:25:38,893 INFO L276 IsEmpty]: Start isEmpty. Operand 6005 states and 9626 transitions. [2022-12-13 15:25:38,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 15:25:38,896 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:25:38,896 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:25:38,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 15:25:38,896 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:25:38,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:25:38,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1632140215, now seen corresponding path program 1 times [2022-12-13 15:25:38,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:25:38,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545762871] [2022-12-13 15:25:38,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:38,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:25:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:25:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:25:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:25:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:25:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 15:25:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:25:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:25:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 15:25:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 15:25:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 15:25:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 15:25:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,361 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-13 15:25:39,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:25:39,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545762871] [2022-12-13 15:25:39,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545762871] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:25:39,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053278183] [2022-12-13 15:25:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:39,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:39,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:25:39,362 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:25:39,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 15:25:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:39,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 15:25:39,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:25:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 15:25:39,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:25:39,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053278183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:25:39,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:25:39,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-12-13 15:25:39,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021334210] [2022-12-13 15:25:39,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:25:39,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:25:39,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:25:39,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:25:39,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-12-13 15:25:39,632 INFO L87 Difference]: Start difference. First operand 6005 states and 9626 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 15:25:40,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:25:40,927 INFO L93 Difference]: Finished difference Result 6142 states and 9910 transitions. [2022-12-13 15:25:40,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:25:40,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2022-12-13 15:25:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:25:40,947 INFO L225 Difference]: With dead ends: 6142 [2022-12-13 15:25:40,947 INFO L226 Difference]: Without dead ends: 6140 [2022-12-13 15:25:40,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-12-13 15:25:40,950 INFO L413 NwaCegarLoop]: 994 mSDtfsCounter, 359 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3949 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:25:40,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 3949 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 15:25:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2022-12-13 15:25:42,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 6005. [2022-12-13 15:25:42,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6005 states, 4544 states have (on average 1.5418133802816902) internal successors, (7006), 4726 states have internal predecessors, (7006), 1096 states have call successors, (1096), 291 states have call predecessors, (1096), 364 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-12-13 15:25:42,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6005 states to 6005 states and 9596 transitions. [2022-12-13 15:25:42,151 INFO L78 Accepts]: Start accepts. Automaton has 6005 states and 9596 transitions. Word has length 147 [2022-12-13 15:25:42,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:25:42,151 INFO L495 AbstractCegarLoop]: Abstraction has 6005 states and 9596 transitions. [2022-12-13 15:25:42,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 15:25:42,151 INFO L276 IsEmpty]: Start isEmpty. Operand 6005 states and 9596 transitions. [2022-12-13 15:25:42,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-12-13 15:25:42,155 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:25:42,155 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2022-12-13 15:25:42,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 15:25:42,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-13 15:25:42,356 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:25:42,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:25:42,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1721447028, now seen corresponding path program 1 times [2022-12-13 15:25:42,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:25:42,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193835622] [2022-12-13 15:25:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:42,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:25:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:25:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:25:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:25:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:25:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:25:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:25:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 15:25:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 15:25:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 15:25:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 15:25:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 15:25:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 15:25:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-12-13 15:25:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 15:25:42,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:25:42,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193835622] [2022-12-13 15:25:42,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193835622] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:25:42,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:25:42,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 15:25:42,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111367721] [2022-12-13 15:25:42,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:25:42,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:25:42,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:25:42,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:25:42,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:25:42,859 INFO L87 Difference]: Start difference. First operand 6005 states and 9596 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 15:25:56,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:25:56,730 INFO L93 Difference]: Finished difference Result 23718 states and 39980 transitions. [2022-12-13 15:25:56,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 15:25:56,732 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 170 [2022-12-13 15:25:56,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:25:56,796 INFO L225 Difference]: With dead ends: 23718 [2022-12-13 15:25:56,796 INFO L226 Difference]: Without dead ends: 17791 [2022-12-13 15:25:56,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=186, Invalid=366, Unknown=0, NotChecked=0, Total=552 [2022-12-13 15:25:56,820 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 5090 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 5085 mSolverCounterSat, 2211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5266 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 7296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2211 IncrementalHoareTripleChecker+Valid, 5085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:25:56,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5266 Valid, 1944 Invalid, 7296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2211 Valid, 5085 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-12-13 15:25:56,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17791 states. [2022-12-13 15:25:58,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17791 to 6029. [2022-12-13 15:25:58,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6029 states, 4568 states have (on average 1.5389667250437828) internal successors, (7030), 4750 states have internal predecessors, (7030), 1096 states have call successors, (1096), 291 states have call predecessors, (1096), 364 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-12-13 15:25:58,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6029 states to 6029 states and 9620 transitions. [2022-12-13 15:25:58,527 INFO L78 Accepts]: Start accepts. Automaton has 6029 states and 9620 transitions. Word has length 170 [2022-12-13 15:25:58,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:25:58,528 INFO L495 AbstractCegarLoop]: Abstraction has 6029 states and 9620 transitions. [2022-12-13 15:25:58,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 15:25:58,528 INFO L276 IsEmpty]: Start isEmpty. Operand 6029 states and 9620 transitions. [2022-12-13 15:25:58,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-12-13 15:25:58,530 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:25:58,530 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 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 15:25:58,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 15:25:58,531 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:25:58,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:25:58,531 INFO L85 PathProgramCache]: Analyzing trace with hash 663422447, now seen corresponding path program 1 times [2022-12-13 15:25:58,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:25:58,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728235955] [2022-12-13 15:25:58,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:58,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:25:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:25:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:25:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:25:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:25:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:25:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:25:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:25:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:25:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 15:25:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 15:25:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 15:25:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 15:25:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 15:25:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:25:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-12-13 15:25:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-12-13 15:25:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:58,948 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-12-13 15:25:58,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:25:58,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728235955] [2022-12-13 15:25:58,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728235955] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:25:58,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149947074] [2022-12-13 15:25:58,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:25:58,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:25:58,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:25:58,950 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:25:58,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 15:25:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:25:59,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:25:59,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:25:59,159 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 15:25:59,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:25:59,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149947074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:25:59,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:25:59,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-12-13 15:25:59,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529820789] [2022-12-13 15:25:59,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:25:59,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:25:59,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:25:59,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:25:59,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:25:59,161 INFO L87 Difference]: Start difference. First operand 6029 states and 9620 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 15:26:00,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:26:00,616 INFO L93 Difference]: Finished difference Result 12214 states and 19710 transitions. [2022-12-13 15:26:00,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:26:00,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 176 [2022-12-13 15:26:00,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:26:00,637 INFO L225 Difference]: With dead ends: 12214 [2022-12-13 15:26:00,638 INFO L226 Difference]: Without dead ends: 6263 [2022-12-13 15:26:00,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:26:00,653 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 213 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2373 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 15:26:00,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2373 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:26:00,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6263 states. [2022-12-13 15:26:01,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6263 to 6263. [2022-12-13 15:26:01,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6263 states, 4796 states have (on average 1.5571309424520434) internal successors, (7468), 4978 states have internal predecessors, (7468), 1096 states have call successors, (1096), 297 states have call predecessors, (1096), 370 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-12-13 15:26:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6263 states to 6263 states and 10058 transitions. [2022-12-13 15:26:02,002 INFO L78 Accepts]: Start accepts. Automaton has 6263 states and 10058 transitions. Word has length 176 [2022-12-13 15:26:02,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:26:02,002 INFO L495 AbstractCegarLoop]: Abstraction has 6263 states and 10058 transitions. [2022-12-13 15:26:02,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 15:26:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 6263 states and 10058 transitions. [2022-12-13 15:26:02,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-12-13 15:26:02,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:26:02,005 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 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, 1] [2022-12-13 15:26:02,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 15:26:02,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:02,206 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:26:02,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:26:02,207 INFO L85 PathProgramCache]: Analyzing trace with hash 620224811, now seen corresponding path program 1 times [2022-12-13 15:26:02,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:26:02,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143760554] [2022-12-13 15:26:02,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:02,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:26:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:26:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:26:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:26:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 15:26:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:26:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:26:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:26:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 15:26:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-12-13 15:26:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-12-13 15:26:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-12-13 15:26:02,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:26:02,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143760554] [2022-12-13 15:26:02,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143760554] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:26:02,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900367082] [2022-12-13 15:26:02,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:02,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:02,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:26:02,662 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:26:02,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 15:26:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:02,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:26:02,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:26:02,889 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-13 15:26:02,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:26:02,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900367082] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:26:02,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:26:02,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-12-13 15:26:02,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750002392] [2022-12-13 15:26:02,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:26:02,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:26:02,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:26:02,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:26:02,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:26:02,890 INFO L87 Difference]: Start difference. First operand 6263 states and 10058 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 15:26:04,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:26:04,338 INFO L93 Difference]: Finished difference Result 12682 states and 20574 transitions. [2022-12-13 15:26:04,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:26:04,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 181 [2022-12-13 15:26:04,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:26:04,359 INFO L225 Difference]: With dead ends: 12682 [2022-12-13 15:26:04,359 INFO L226 Difference]: Without dead ends: 6497 [2022-12-13 15:26:04,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:26:04,376 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 211 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2373 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 15:26:04,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2373 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:26:04,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6497 states. [2022-12-13 15:26:05,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6497 to 6497. [2022-12-13 15:26:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6497 states, 5024 states have (on average 1.5736464968152866) internal successors, (7906), 5206 states have internal predecessors, (7906), 1096 states have call successors, (1096), 303 states have call predecessors, (1096), 376 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-12-13 15:26:05,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6497 states to 6497 states and 10496 transitions. [2022-12-13 15:26:05,725 INFO L78 Accepts]: Start accepts. Automaton has 6497 states and 10496 transitions. Word has length 181 [2022-12-13 15:26:05,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:26:05,725 INFO L495 AbstractCegarLoop]: Abstraction has 6497 states and 10496 transitions. [2022-12-13 15:26:05,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 15:26:05,725 INFO L276 IsEmpty]: Start isEmpty. Operand 6497 states and 10496 transitions. [2022-12-13 15:26:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-12-13 15:26:05,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:26:05,728 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 3, 3, 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, 1, 1] [2022-12-13 15:26:05,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-13 15:26:05,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-12-13 15:26:05,929 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:26:05,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:26:05,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1373818149, now seen corresponding path program 1 times [2022-12-13 15:26:05,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:26:05,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664396133] [2022-12-13 15:26:05,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:05,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:26:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:26:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:26:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:26:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 15:26:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 15:26:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 15:26:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 15:26:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 15:26:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-12-13 15:26:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-12-13 15:26:06,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:26:06,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664396133] [2022-12-13 15:26:06,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664396133] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:26:06,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634602948] [2022-12-13 15:26:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:06,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:06,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:26:06,307 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:26:06,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 15:26:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:06,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:26:06,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:26:06,555 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:26:06,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:26:06,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634602948] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:26:06,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:26:06,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-12-13 15:26:06,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299423407] [2022-12-13 15:26:06,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:26:06,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:26:06,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:26:06,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:26:06,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:26:06,557 INFO L87 Difference]: Start difference. First operand 6497 states and 10496 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 15:26:08,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:26:08,043 INFO L93 Difference]: Finished difference Result 13150 states and 21438 transitions. [2022-12-13 15:26:08,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:26:08,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 185 [2022-12-13 15:26:08,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:26:08,064 INFO L225 Difference]: With dead ends: 13150 [2022-12-13 15:26:08,064 INFO L226 Difference]: Without dead ends: 6731 [2022-12-13 15:26:08,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:26:08,080 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 209 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2373 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 15:26:08,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2373 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:26:08,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6731 states. [2022-12-13 15:26:09,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6731 to 6731. [2022-12-13 15:26:09,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6731 states, 5252 states have (on average 1.5887281035795888) internal successors, (8344), 5434 states have internal predecessors, (8344), 1096 states have call successors, (1096), 309 states have call predecessors, (1096), 382 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-12-13 15:26:09,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6731 states to 6731 states and 10934 transitions. [2022-12-13 15:26:09,477 INFO L78 Accepts]: Start accepts. Automaton has 6731 states and 10934 transitions. Word has length 185 [2022-12-13 15:26:09,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:26:09,477 INFO L495 AbstractCegarLoop]: Abstraction has 6731 states and 10934 transitions. [2022-12-13 15:26:09,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 15:26:09,478 INFO L276 IsEmpty]: Start isEmpty. Operand 6731 states and 10934 transitions. [2022-12-13 15:26:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-12-13 15:26:09,482 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:26:09,482 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 3, 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, 1, 1, 1] [2022-12-13 15:26:09,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 15:26:09,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-12-13 15:26:09,684 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:26:09,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:26:09,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1287445809, now seen corresponding path program 1 times [2022-12-13 15:26:09,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:26:09,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597800873] [2022-12-13 15:26:09,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:09,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:26:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:09,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:09,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:09,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:26:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:09,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:26:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:26:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:26:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 15:26:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 15:26:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 15:26:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-12-13 15:26:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 15:26:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,145 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-12-13 15:26:10,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:26:10,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597800873] [2022-12-13 15:26:10,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597800873] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:26:10,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898480653] [2022-12-13 15:26:10,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:10,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:10,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:26:10,146 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:26:10,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 15:26:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:10,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:26:10,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:26:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 15:26:10,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:26:10,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898480653] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:26:10,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:26:10,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-12-13 15:26:10,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640717298] [2022-12-13 15:26:10,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:26:10,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:26:10,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:26:10,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:26:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:26:10,367 INFO L87 Difference]: Start difference. First operand 6731 states and 10934 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 15:26:11,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:26:11,897 INFO L93 Difference]: Finished difference Result 13618 states and 22302 transitions. [2022-12-13 15:26:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:26:11,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 188 [2022-12-13 15:26:11,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:26:11,919 INFO L225 Difference]: With dead ends: 13618 [2022-12-13 15:26:11,919 INFO L226 Difference]: Without dead ends: 6965 [2022-12-13 15:26:11,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:26:11,934 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 207 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2373 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 15:26:11,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2373 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:26:11,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2022-12-13 15:26:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6965. [2022-12-13 15:26:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 5480 states have (on average 1.6025547445255475) internal successors, (8782), 5662 states have internal predecessors, (8782), 1096 states have call successors, (1096), 315 states have call predecessors, (1096), 388 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-12-13 15:26:13,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 11372 transitions. [2022-12-13 15:26:13,296 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 11372 transitions. Word has length 188 [2022-12-13 15:26:13,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:26:13,296 INFO L495 AbstractCegarLoop]: Abstraction has 6965 states and 11372 transitions. [2022-12-13 15:26:13,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 15:26:13,297 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 11372 transitions. [2022-12-13 15:26:13,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-12-13 15:26:13,300 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:26:13,300 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, 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, 1, 1, 1, 1, 1] [2022-12-13 15:26:13,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 15:26:13,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:13,501 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:26:13,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:26:13,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1681263421, now seen corresponding path program 1 times [2022-12-13 15:26:13,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:26:13,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346512031] [2022-12-13 15:26:13,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:13,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:26:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:26:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:26:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:26:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:26:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:26:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:26:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-12-13 15:26:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 15:26:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-12-13 15:26:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:13,984 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-12-13 15:26:13,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:26:13,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346512031] [2022-12-13 15:26:13,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346512031] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:26:13,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257399030] [2022-12-13 15:26:13,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:13,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:13,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:26:13,985 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:26:13,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 15:26:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:14,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-13 15:26:14,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:26:14,342 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-12-13 15:26:14,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:26:14,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257399030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:26:14,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:26:14,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2022-12-13 15:26:14,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523816787] [2022-12-13 15:26:14,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:26:14,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:26:14,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:26:14,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:26:14,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-12-13 15:26:14,344 INFO L87 Difference]: Start difference. First operand 6965 states and 11372 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2022-12-13 15:26:19,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:26:19,666 INFO L93 Difference]: Finished difference Result 21710 states and 36126 transitions. [2022-12-13 15:26:19,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 15:26:19,666 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 190 [2022-12-13 15:26:19,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:26:19,703 INFO L225 Difference]: With dead ends: 21710 [2022-12-13 15:26:19,703 INFO L226 Difference]: Without dead ends: 11508 [2022-12-13 15:26:19,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-12-13 15:26:19,730 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1977 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 4566 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 5057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 4566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:26:19,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 2487 Invalid, 5057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 4566 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 15:26:19,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11508 states. [2022-12-13 15:26:21,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11508 to 11152. [2022-12-13 15:26:21,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11152 states, 8652 states have (on average 1.6040221914008321) internal successors, (13878), 9007 states have internal predecessors, (13878), 1829 states have call successors, (1829), 497 states have call predecessors, (1829), 670 states have return successors, (2564), 1790 states have call predecessors, (2564), 1821 states have call successors, (2564) [2022-12-13 15:26:21,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11152 states to 11152 states and 18271 transitions. [2022-12-13 15:26:21,996 INFO L78 Accepts]: Start accepts. Automaton has 11152 states and 18271 transitions. Word has length 190 [2022-12-13 15:26:21,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:26:21,996 INFO L495 AbstractCegarLoop]: Abstraction has 11152 states and 18271 transitions. [2022-12-13 15:26:21,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2022-12-13 15:26:21,996 INFO L276 IsEmpty]: Start isEmpty. Operand 11152 states and 18271 transitions. [2022-12-13 15:26:22,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-12-13 15:26:22,003 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:26:22,004 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, 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, 1, 1, 1, 1, 1] [2022-12-13 15:26:22,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 15:26:22,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-12-13 15:26:22,205 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:26:22,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:26:22,206 INFO L85 PathProgramCache]: Analyzing trace with hash -429588659, now seen corresponding path program 1 times [2022-12-13 15:26:22,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:26:22,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210555911] [2022-12-13 15:26:22,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:22,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:26:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:26:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:26:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:26:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:26:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:26:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:26:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-12-13 15:26:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 15:26:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-12-13 15:26:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-13 15:26:22,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:26:22,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210555911] [2022-12-13 15:26:22,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210555911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:26:22,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:26:22,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:26:22,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943114020] [2022-12-13 15:26:22,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:26:22,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:26:22,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:26:22,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:26:22,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:26:22,501 INFO L87 Difference]: Start difference. First operand 11152 states and 18271 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 15:26:30,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:26:30,653 INFO L93 Difference]: Finished difference Result 25096 states and 41930 transitions. [2022-12-13 15:26:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 15:26:30,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 190 [2022-12-13 15:26:30,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:26:30,707 INFO L225 Difference]: With dead ends: 25096 [2022-12-13 15:26:30,707 INFO L226 Difference]: Without dead ends: 13894 [2022-12-13 15:26:30,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:26:30,736 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 1374 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 2748 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 3080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 2748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:26:30,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1435 Invalid, 3080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 2748 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-12-13 15:26:30,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13894 states. [2022-12-13 15:26:33,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13894 to 11174. [2022-12-13 15:26:33,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11174 states, 8674 states have (on average 1.5975328568134655) internal successors, (13857), 9029 states have internal predecessors, (13857), 1829 states have call successors, (1829), 497 states have call predecessors, (1829), 670 states have return successors, (2564), 1790 states have call predecessors, (2564), 1821 states have call successors, (2564) [2022-12-13 15:26:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11174 states to 11174 states and 18250 transitions. [2022-12-13 15:26:33,167 INFO L78 Accepts]: Start accepts. Automaton has 11174 states and 18250 transitions. Word has length 190 [2022-12-13 15:26:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:26:33,167 INFO L495 AbstractCegarLoop]: Abstraction has 11174 states and 18250 transitions. [2022-12-13 15:26:33,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 15:26:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 11174 states and 18250 transitions. [2022-12-13 15:26:33,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-12-13 15:26:33,197 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:26:33,197 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:26:33,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 15:26:33,197 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:26:33,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:26:33,198 INFO L85 PathProgramCache]: Analyzing trace with hash -2105572543, now seen corresponding path program 1 times [2022-12-13 15:26:33,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:26:33,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559488126] [2022-12-13 15:26:33,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:33,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:26:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:26:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 15:26:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:26:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:26:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:26:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:26:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-12-13 15:26:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 15:26:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-12-13 15:26:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-12-13 15:26:33,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:26:33,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559488126] [2022-12-13 15:26:33,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559488126] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:26:33,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74626793] [2022-12-13 15:26:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:33,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:33,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:26:33,563 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:26:33,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 15:26:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:33,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 15:26:33,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:26:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-13 15:26:33,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:26:33,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74626793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:26:33,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:26:33,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 19 [2022-12-13 15:26:33,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339304644] [2022-12-13 15:26:33,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:26:33,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:26:33,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:26:33,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:26:33,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-12-13 15:26:33,771 INFO L87 Difference]: Start difference. First operand 11174 states and 18250 transitions. Second operand has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-13 15:26:36,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:26:36,138 INFO L93 Difference]: Finished difference Result 21838 states and 35793 transitions. [2022-12-13 15:26:36,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:26:36,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 196 [2022-12-13 15:26:36,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:26:36,170 INFO L225 Difference]: With dead ends: 21838 [2022-12-13 15:26:36,170 INFO L226 Difference]: Without dead ends: 10379 [2022-12-13 15:26:36,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-12-13 15:26:36,194 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 50 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 5051 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:26:36,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 5051 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:26:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10379 states. [2022-12-13 15:26:38,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10379 to 10379. [2022-12-13 15:26:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 8114 states have (on average 1.6205324131131378) internal successors, (13149), 8444 states have internal predecessors, (13149), 1644 states have call successors, (1644), 473 states have call predecessors, (1644), 620 states have return successors, (2209), 1584 states have call predecessors, (2209), 1636 states have call successors, (2209) [2022-12-13 15:26:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 17002 transitions. [2022-12-13 15:26:38,407 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 17002 transitions. Word has length 196 [2022-12-13 15:26:38,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:26:38,407 INFO L495 AbstractCegarLoop]: Abstraction has 10379 states and 17002 transitions. [2022-12-13 15:26:38,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-13 15:26:38,407 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 17002 transitions. [2022-12-13 15:26:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-12-13 15:26:38,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:26:38,416 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:26:38,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 15:26:38,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:38,618 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:26:38,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:26:38,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1406658870, now seen corresponding path program 1 times [2022-12-13 15:26:38,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:26:38,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434310813] [2022-12-13 15:26:38,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:38,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:26:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:38,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:26:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:26:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:26:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:26:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:26:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:26:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:26:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 15:26:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:26:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:26:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:26:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:26:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:26:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-12-13 15:26:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:26:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 15:26:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 15:26:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:26:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 15:26:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 15:26:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 15:26:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:26:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 15:26:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 15:26:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 15:26:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 15:26:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2022-12-13 15:26:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-12-13 15:26:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-12-13 15:26:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-12-13 15:26:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2022-12-13 15:26:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 84 proven. 152 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2022-12-13 15:26:39,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:26:39,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434310813] [2022-12-13 15:26:39,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434310813] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:26:39,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867723745] [2022-12-13 15:26:39,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:39,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:39,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:26:39,700 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:26:39,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 15:26:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:40,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 4094 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:26:40,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:26:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-12-13 15:26:40,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:26:40,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867723745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:26:40,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:26:40,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2022-12-13 15:26:40,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369381001] [2022-12-13 15:26:40,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:26:40,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:26:40,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:26:40,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:26:40,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-12-13 15:26:40,253 INFO L87 Difference]: Start difference. First operand 10379 states and 17002 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-13 15:26:43,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:26:43,623 INFO L93 Difference]: Finished difference Result 21295 states and 35310 transitions. [2022-12-13 15:26:43,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:26:43,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 552 [2022-12-13 15:26:43,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:26:43,670 INFO L225 Difference]: With dead ends: 21295 [2022-12-13 15:26:43,670 INFO L226 Difference]: Without dead ends: 15837 [2022-12-13 15:26:43,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 674 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-12-13 15:26:43,690 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 853 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:26:43,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 1769 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:26:43,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15837 states. [2022-12-13 15:26:47,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15837 to 15835. [2022-12-13 15:26:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15835 states, 12322 states have (on average 1.6195422820970622) internal successors, (19956), 12851 states have internal predecessors, (19956), 2570 states have call successors, (2570), 718 states have call predecessors, (2570), 942 states have return successors, (3624), 2511 states have call predecessors, (3624), 2558 states have call successors, (3624) [2022-12-13 15:26:47,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15835 states to 15835 states and 26150 transitions. [2022-12-13 15:26:47,153 INFO L78 Accepts]: Start accepts. Automaton has 15835 states and 26150 transitions. Word has length 552 [2022-12-13 15:26:47,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:26:47,153 INFO L495 AbstractCegarLoop]: Abstraction has 15835 states and 26150 transitions. [2022-12-13 15:26:47,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-13 15:26:47,153 INFO L276 IsEmpty]: Start isEmpty. Operand 15835 states and 26150 transitions. [2022-12-13 15:26:47,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-12-13 15:26:47,165 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:26:47,165 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:26:47,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-12-13 15:26:47,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:47,367 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:26:47,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:26:47,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1253831751, now seen corresponding path program 1 times [2022-12-13 15:26:47,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:26:47,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598421562] [2022-12-13 15:26:47,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:47,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:26:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:47,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:47,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:26:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:47,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:26:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:47,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:26:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:26:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:26:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:26:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:26:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 15:26:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:26:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:26:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:26:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:26:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:26:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-12-13 15:26:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:26:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 15:26:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 15:26:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:26:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 15:26:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 15:26:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 15:26:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 15:26:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:26:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 15:26:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 15:26:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 15:26:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-12-13 15:26:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2022-12-13 15:26:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2022-12-13 15:26:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2022-12-13 15:26:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-12-13 15:26:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 84 proven. 152 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2022-12-13 15:26:48,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:26:48,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598421562] [2022-12-13 15:26:48,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598421562] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:26:48,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108323634] [2022-12-13 15:26:48,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:48,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:48,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:26:48,367 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:26:48,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 15:26:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:48,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 4095 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:26:48,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:26:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-12-13 15:26:48,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:26:48,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108323634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:26:48,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:26:48,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-12-13 15:26:48,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618589910] [2022-12-13 15:26:48,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:26:48,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:26:48,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:26:48,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:26:48,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-12-13 15:26:48,749 INFO L87 Difference]: Start difference. First operand 15835 states and 26150 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-13 15:26:52,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:26:52,617 INFO L93 Difference]: Finished difference Result 31733 states and 52942 transitions. [2022-12-13 15:26:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:26:52,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 553 [2022-12-13 15:26:52,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:26:52,674 INFO L225 Difference]: With dead ends: 31733 [2022-12-13 15:26:52,674 INFO L226 Difference]: Without dead ends: 15970 [2022-12-13 15:26:52,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 674 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-12-13 15:26:52,718 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 38 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:26:52,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2459 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:26:52,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15970 states. [2022-12-13 15:26:56,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15970 to 15970. [2022-12-13 15:26:56,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15970 states, 12442 states have (on average 1.6208005143867545) internal successors, (20166), 12971 states have internal predecessors, (20166), 2570 states have call successors, (2570), 733 states have call predecessors, (2570), 957 states have return successors, (3624), 2511 states have call predecessors, (3624), 2558 states have call successors, (3624) [2022-12-13 15:26:56,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15970 states to 15970 states and 26360 transitions. [2022-12-13 15:26:56,460 INFO L78 Accepts]: Start accepts. Automaton has 15970 states and 26360 transitions. Word has length 553 [2022-12-13 15:26:56,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:26:56,460 INFO L495 AbstractCegarLoop]: Abstraction has 15970 states and 26360 transitions. [2022-12-13 15:26:56,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-13 15:26:56,461 INFO L276 IsEmpty]: Start isEmpty. Operand 15970 states and 26360 transitions. [2022-12-13 15:26:56,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-12-13 15:26:56,472 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:26:56,473 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:26:56,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-13 15:26:56,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-13 15:26:56,674 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:26:56,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:26:56,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1347188903, now seen corresponding path program 1 times [2022-12-13 15:26:56,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:26:56,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125335907] [2022-12-13 15:26:56,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:56,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:26:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:26:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:26:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:26:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:26:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:26:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:26:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:26:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 15:26:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:26:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:26:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:26:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:26:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:26:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:26:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:26:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:26:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:26:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-12-13 15:26:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:26:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:26:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 15:26:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 15:26:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:26:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 15:26:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 15:26:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 15:26:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 15:26:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:26:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 15:26:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 15:26:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 15:26:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2022-12-13 15:26:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:26:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-12-13 15:26:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-12-13 15:26:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:26:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-12-13 15:26:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2022-12-13 15:26:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 86 proven. 151 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2022-12-13 15:26:57,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:26:57,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125335907] [2022-12-13 15:26:57,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125335907] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:26:57,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660743964] [2022-12-13 15:26:57,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:57,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:57,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:26:57,716 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:26:57,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 15:26:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:58,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 4096 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:26:58,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:26:58,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2022-12-13 15:26:58,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:26:58,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660743964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:26:58,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:26:58,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-12-13 15:26:58,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342733056] [2022-12-13 15:26:58,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:26:58,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:26:58,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:26:58,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:26:58,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-12-13 15:26:58,092 INFO L87 Difference]: Start difference. First operand 15970 states and 26360 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-13 15:27:01,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:27:01,607 INFO L93 Difference]: Finished difference Result 32003 states and 53302 transitions. [2022-12-13 15:27:01,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:27:01,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 554 [2022-12-13 15:27:01,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:27:01,658 INFO L225 Difference]: With dead ends: 32003 [2022-12-13 15:27:01,659 INFO L226 Difference]: Without dead ends: 16105 [2022-12-13 15:27:01,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 672 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-12-13 15:27:01,700 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 36 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:27:01,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2459 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:27:01,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16105 states. [2022-12-13 15:27:05,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16105 to 16105. [2022-12-13 15:27:05,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16105 states, 12562 states have (on average 1.6220347078490687) internal successors, (20376), 13091 states have internal predecessors, (20376), 2570 states have call successors, (2570), 748 states have call predecessors, (2570), 972 states have return successors, (3624), 2511 states have call predecessors, (3624), 2558 states have call successors, (3624) [2022-12-13 15:27:05,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16105 states to 16105 states and 26570 transitions. [2022-12-13 15:27:05,166 INFO L78 Accepts]: Start accepts. Automaton has 16105 states and 26570 transitions. Word has length 554 [2022-12-13 15:27:05,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:27:05,166 INFO L495 AbstractCegarLoop]: Abstraction has 16105 states and 26570 transitions. [2022-12-13 15:27:05,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-13 15:27:05,166 INFO L276 IsEmpty]: Start isEmpty. Operand 16105 states and 26570 transitions. [2022-12-13 15:27:05,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-12-13 15:27:05,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:27:05,178 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:27:05,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-12-13 15:27:05,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:27:05,380 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:27:05,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:05,381 INFO L85 PathProgramCache]: Analyzing trace with hash 505079203, now seen corresponding path program 1 times [2022-12-13 15:27:05,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:05,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765009731] [2022-12-13 15:27:05,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:05,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:05,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:27:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:05,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:05,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:27:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:05,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:27:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:05,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:27:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:27:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:27:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:27:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:27:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:27:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:27:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:27:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:27:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:27:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 15:27:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:27:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:27:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:27:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:27:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:27:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:27:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:27:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:27:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:27:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:27:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-12-13 15:27:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:27:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:27:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:27:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:27:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:27:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 15:27:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 15:27:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 15:27:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 15:27:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:27:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 15:27:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 15:27:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 15:27:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2022-12-13 15:27:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:27:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-12-13 15:27:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-12-13 15:27:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:27:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-12-13 15:27:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2022-12-13 15:27:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 88 proven. 150 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2022-12-13 15:27:06,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:06,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765009731] [2022-12-13 15:27:06,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765009731] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:27:06,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594275652] [2022-12-13 15:27:06,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:06,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:27:06,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:27:06,371 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:27:06,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 15:27:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:06,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 4096 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:27:06,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:27:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 759 proven. 264 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-12-13 15:27:06,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:27:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 131 proven. 36 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. [2022-12-13 15:27:07,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594275652] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:27:07,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:27:07,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6, 5] total 24 [2022-12-13 15:27:07,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620806500] [2022-12-13 15:27:07,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:27:07,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 15:27:07,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:07,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 15:27:07,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2022-12-13 15:27:07,482 INFO L87 Difference]: Start difference. First operand 16105 states and 26570 transitions. Second operand has 24 states, 24 states have (on average 19.291666666666668) internal successors, (463), 19 states have internal predecessors, (463), 11 states have call successors, (111), 11 states have call predecessors, (111), 11 states have return successors, (109), 13 states have call predecessors, (109), 11 states have call successors, (109) [2022-12-13 15:29:09,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:29:09,033 INFO L93 Difference]: Finished difference Result 140662 states and 294300 transitions. [2022-12-13 15:29:09,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-12-13 15:29:09,034 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 19.291666666666668) internal successors, (463), 19 states have internal predecessors, (463), 11 states have call successors, (111), 11 states have call predecessors, (111), 11 states have return successors, (109), 13 states have call predecessors, (109), 11 states have call successors, (109) Word has length 554 [2022-12-13 15:29:09,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:29:09,933 INFO L225 Difference]: With dead ends: 140662 [2022-12-13 15:29:09,934 INFO L226 Difference]: Without dead ends: 120652 [2022-12-13 15:29:10,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1470 GetRequests, 1317 SyntacticMatches, 3 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8789 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=3257, Invalid=19695, Unknown=0, NotChecked=0, Total=22952 [2022-12-13 15:29:10,180 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 19175 mSDsluCounter, 9786 mSDsCounter, 0 mSdLazyCounter, 57469 mSolverCounterSat, 20134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19175 SdHoareTripleChecker+Valid, 10628 SdHoareTripleChecker+Invalid, 77603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 20134 IncrementalHoareTripleChecker+Valid, 57469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:29:10,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19175 Valid, 10628 Invalid, 77603 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [20134 Valid, 57469 Invalid, 0 Unknown, 0 Unchecked, 66.7s Time] [2022-12-13 15:29:10,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120652 states. [2022-12-13 15:29:28,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120652 to 54792. [2022-12-13 15:29:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54792 states, 40123 states have (on average 1.5562146399820551) internal successors, (62440), 42480 states have internal predecessors, (62440), 11612 states have call successors, (11612), 2318 states have call predecessors, (11612), 3056 states have return successors, (17086), 11555 states have call predecessors, (17086), 11582 states have call successors, (17086) [2022-12-13 15:29:29,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54792 states to 54792 states and 91138 transitions. [2022-12-13 15:29:29,293 INFO L78 Accepts]: Start accepts. Automaton has 54792 states and 91138 transitions. Word has length 554 [2022-12-13 15:29:29,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:29:29,293 INFO L495 AbstractCegarLoop]: Abstraction has 54792 states and 91138 transitions. [2022-12-13 15:29:29,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 19.291666666666668) internal successors, (463), 19 states have internal predecessors, (463), 11 states have call successors, (111), 11 states have call predecessors, (111), 11 states have return successors, (109), 13 states have call predecessors, (109), 11 states have call successors, (109) [2022-12-13 15:29:29,293 INFO L276 IsEmpty]: Start isEmpty. Operand 54792 states and 91138 transitions. [2022-12-13 15:29:29,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-12-13 15:29:29,316 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:29:29,317 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 15:29:29,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-13 15:29:29,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-12-13 15:29:29,518 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:29:29,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:29:29,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1403683077, now seen corresponding path program 1 times [2022-12-13 15:29:29,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:29:29,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287818275] [2022-12-13 15:29:29,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:29:29,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:29:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:29:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:29,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:29:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:29:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:29:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:29:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:29:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:29:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:29:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:29:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:29:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:29:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:29:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:29:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 15:29:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:29:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:29:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:29:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:29:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:29:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:29:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:29:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:29:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:29:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:29:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-12-13 15:29:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:29:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:29:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:29:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:29:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:29:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 15:29:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 15:29:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 15:29:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:29:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:29:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 15:29:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 15:29:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 15:29:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-12-13 15:29:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:29:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2022-12-13 15:29:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2022-12-13 15:29:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:29:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2022-12-13 15:29:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-12-13 15:29:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1612 backedges. 53 proven. 114 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-12-13 15:29:30,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:29:30,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287818275] [2022-12-13 15:29:30,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287818275] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:29:30,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65251157] [2022-12-13 15:29:30,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:29:30,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:29:30,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:29:30,440 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:29:30,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-13 15:29:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:30,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 4106 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:29:30,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:29:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1612 backedges. 756 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2022-12-13 15:29:30,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:29:30,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65251157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:29:30,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:29:30,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-12-13 15:29:30,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153583066] [2022-12-13 15:29:30,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:29:30,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:29:30,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:29:30,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:29:30,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:29:30,814 INFO L87 Difference]: Start difference. First operand 54792 states and 91138 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-13 15:30:01,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:30:01,518 INFO L93 Difference]: Finished difference Result 148356 states and 255956 transitions. [2022-12-13 15:30:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:30:01,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 555 [2022-12-13 15:30:01,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:30:02,090 INFO L225 Difference]: With dead ends: 148356 [2022-12-13 15:30:02,090 INFO L226 Difference]: Without dead ends: 101574 [2022-12-13 15:30:02,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:30:02,383 INFO L413 NwaCegarLoop]: 1609 mSDtfsCounter, 809 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:30:02,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 2467 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:30:02,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101574 states. [2022-12-13 15:30:31,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101574 to 101572. [2022-12-13 15:30:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101572 states, 73991 states have (on average 1.5516752037409955) internal successors, (114810), 78478 states have internal predecessors, (114810), 21976 states have call successors, (21976), 4202 states have call predecessors, (21976), 5604 states have return successors, (37970), 22015 states have call predecessors, (37970), 21922 states have call successors, (37970) [2022-12-13 15:30:32,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101572 states to 101572 states and 174756 transitions. [2022-12-13 15:30:32,767 INFO L78 Accepts]: Start accepts. Automaton has 101572 states and 174756 transitions. Word has length 555 [2022-12-13 15:30:32,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:30:32,767 INFO L495 AbstractCegarLoop]: Abstraction has 101572 states and 174756 transitions. [2022-12-13 15:30:32,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-13 15:30:32,767 INFO L276 IsEmpty]: Start isEmpty. Operand 101572 states and 174756 transitions. [2022-12-13 15:30:32,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-12-13 15:30:32,802 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:30:32,802 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 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 15:30:32,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-12-13 15:30:33,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:30:33,004 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:30:33,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:30:33,005 INFO L85 PathProgramCache]: Analyzing trace with hash 2009757659, now seen corresponding path program 1 times [2022-12-13 15:30:33,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:30:33,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990454035] [2022-12-13 15:30:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:30:33,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:30:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:30:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:30:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:30:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:30:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:30:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:30:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:30:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:30:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:30:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:30:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:30:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:30:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:30:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 15:30:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:30:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:30:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:30:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:30:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:30:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:30:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:30:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:30:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:30:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:30:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-12-13 15:30:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:30:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:30:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 15:30:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 15:30:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:30:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:30:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:30:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:30:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:30:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 15:30:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 15:30:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 15:30:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 15:30:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-12-13 15:30:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:30:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-12-13 15:30:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-12-13 15:30:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:30:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-12-13 15:30:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2022-12-13 15:30:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1612 backedges. 53 proven. 114 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-12-13 15:30:33,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:30:33,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990454035] [2022-12-13 15:30:33,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990454035] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:30:33,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813011086] [2022-12-13 15:30:33,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:30:33,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:30:33,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:30:33,836 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:30:33,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-13 15:30:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:34,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 4107 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:30:34,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:30:34,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1612 backedges. 732 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2022-12-13 15:30:34,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:30:34,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813011086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:30:34,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:30:34,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-12-13 15:30:34,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261958842] [2022-12-13 15:30:34,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:30:34,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:30:34,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:30:34,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:30:34,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:30:34,498 INFO L87 Difference]: Start difference. First operand 101572 states and 174756 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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 15:31:06,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:31:06,735 INFO L93 Difference]: Finished difference Result 205322 states and 359945 transitions. [2022-12-13 15:31:06,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:31:06,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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 556 [2022-12-13 15:31:06,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:31:07,323 INFO L225 Difference]: With dead ends: 205322 [2022-12-13 15:31:07,323 INFO L226 Difference]: Without dead ends: 103822 [2022-12-13 15:31:07,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 675 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-12-13 15:31:07,984 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 205 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2334 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 15:31:07,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2334 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:31:08,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103822 states. [2022-12-13 15:31:38,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103822 to 103822. [2022-12-13 15:31:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103822 states, 76151 states have (on average 1.5602552822681253) internal successors, (118815), 80638 states have internal predecessors, (118815), 21976 states have call successors, (21976), 4292 states have call predecessors, (21976), 5694 states have return successors, (37970), 22015 states have call predecessors, (37970), 21922 states have call successors, (37970) [2022-12-13 15:31:39,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103822 states to 103822 states and 178761 transitions. [2022-12-13 15:31:39,141 INFO L78 Accepts]: Start accepts. Automaton has 103822 states and 178761 transitions. Word has length 556 [2022-12-13 15:31:39,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:31:39,141 INFO L495 AbstractCegarLoop]: Abstraction has 103822 states and 178761 transitions. [2022-12-13 15:31:39,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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 15:31:39,141 INFO L276 IsEmpty]: Start isEmpty. Operand 103822 states and 178761 transitions. [2022-12-13 15:31:39,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-12-13 15:31:39,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:31:39,178 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 15:31:39,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-12-13 15:31:39,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:31:39,380 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:31:39,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:31:39,381 INFO L85 PathProgramCache]: Analyzing trace with hash 382060367, now seen corresponding path program 1 times [2022-12-13 15:31:39,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:31:39,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016752183] [2022-12-13 15:31:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:31:39,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:31:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:39,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:31:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:39,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:39,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:31:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:39,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:31:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:31:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:31:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:31:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:31:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:31:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:31:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:31:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:31:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:31:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 15:31:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 15:31:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:31:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:31:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:31:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:31:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:31:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:31:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:31:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:31:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:31:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 15:31:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-12-13 15:31:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:31:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:31:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 15:31:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 15:31:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:31:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:31:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:31:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:31:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:31:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 15:31:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 15:31:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 15:31:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 15:31:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-12-13 15:31:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:31:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2022-12-13 15:31:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2022-12-13 15:31:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:31:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2022-12-13 15:31:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-12-13 15:31:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1615 backedges. 124 proven. 103 refuted. 0 times theorem prover too weak. 1388 trivial. 0 not checked. [2022-12-13 15:31:40,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:31:40,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016752183] [2022-12-13 15:31:40,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016752183] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:31:40,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867028206] [2022-12-13 15:31:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:31:40,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:31:40,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:31:40,514 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:31:40,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-13 15:31:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:31:40,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 4110 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 15:31:40,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:31:41,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1615 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 842 trivial. 0 not checked. [2022-12-13 15:31:41,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:31:41,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867028206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:31:41,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:31:41,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [22] total 28 [2022-12-13 15:31:41,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391456383] [2022-12-13 15:31:41,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:31:41,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:31:41,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:31:41,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:31:41,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-12-13 15:31:41,341 INFO L87 Difference]: Start difference. First operand 103822 states and 178761 transitions. Second operand has 9 states, 9 states have (on average 25.444444444444443) internal successors, (229), 8 states have internal predecessors, (229), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-12-13 15:33:26,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:33:26,165 INFO L93 Difference]: Finished difference Result 397735 states and 725269 transitions. [2022-12-13 15:33:26,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 15:33:26,166 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 25.444444444444443) internal successors, (229), 8 states have internal predecessors, (229), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) Word has length 559 [2022-12-13 15:33:26,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:33:28,582 INFO L225 Difference]: With dead ends: 397735 [2022-12-13 15:33:28,582 INFO L226 Difference]: Without dead ends: 295616 [2022-12-13 15:33:29,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=132, Invalid=1128, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 15:33:29,749 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 2548 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 8732 mSolverCounterSat, 911 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2760 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 9643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 911 IncrementalHoareTripleChecker+Valid, 8732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:33:29,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2760 Valid, 2579 Invalid, 9643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [911 Valid, 8732 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-13 15:33:29,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295616 states. [2022-12-13 15:34:45,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295616 to 247086. [2022-12-13 15:34:45,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247086 states, 178609 states have (on average 1.5465682020502887) internal successors, (276231), 189397 states have internal predecessors, (276231), 55353 states have call successors, (55353), 9958 states have call predecessors, (55353), 13123 states have return successors, (106105), 56306 states have call predecessors, (106105), 55220 states have call successors, (106105) [2022-12-13 15:34:48,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247086 states to 247086 states and 437689 transitions. [2022-12-13 15:34:48,305 INFO L78 Accepts]: Start accepts. Automaton has 247086 states and 437689 transitions. Word has length 559 [2022-12-13 15:34:48,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:34:48,306 INFO L495 AbstractCegarLoop]: Abstraction has 247086 states and 437689 transitions. [2022-12-13 15:34:48,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.444444444444443) internal successors, (229), 8 states have internal predecessors, (229), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-12-13 15:34:48,306 INFO L276 IsEmpty]: Start isEmpty. Operand 247086 states and 437689 transitions. [2022-12-13 15:34:48,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-12-13 15:34:48,380 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:34:48,380 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 15:34:48,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-12-13 15:34:48,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:48,582 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:34:48,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:48,584 INFO L85 PathProgramCache]: Analyzing trace with hash -2050147237, now seen corresponding path program 1 times [2022-12-13 15:34:48,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:48,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316523686] [2022-12-13 15:34:48,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:48,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:34:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:34:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:34:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:34:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:34:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:34:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:34:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:34:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:34:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:34:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:34:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:34:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 15:34:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 15:34:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:34:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:34:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:34:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:34:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:34:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:34:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:34:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:34:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:34:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 15:34:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-12-13 15:34:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 15:34:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 15:34:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 15:34:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 15:34:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:34:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:34:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:34:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:34:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:34:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 15:34:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 15:34:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 15:34:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 15:34:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-12-13 15:34:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:34:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2022-12-13 15:34:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2022-12-13 15:34:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:34:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2022-12-13 15:34:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-12-13 15:34:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:49,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1615 backedges. 89 proven. 100 refuted. 0 times theorem prover too weak. 1426 trivial. 0 not checked. [2022-12-13 15:34:49,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:34:49,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316523686] [2022-12-13 15:34:49,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316523686] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:34:49,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645879904] [2022-12-13 15:34:49,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:49,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:49,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:34:49,692 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:34:49,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9e1eba-e604-4bd6-a5e5-3c3b1a7518d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-12-13 15:34:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:50,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 4110 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:34:50,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:34:50,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1615 backedges. 750 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2022-12-13 15:34:50,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:34:50,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645879904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:34:50,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:34:50,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 19 [2022-12-13 15:34:50,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966098716] [2022-12-13 15:34:50,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:34:50,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:34:50,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:34:50,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:34:50,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-12-13 15:34:50,124 INFO L87 Difference]: Start difference. First operand 247086 states and 437689 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-13 15:36:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:09,222 INFO L93 Difference]: Finished difference Result 495934 states and 901287 transitions. [2022-12-13 15:36:09,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:36:09,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 559 [2022-12-13 15:36:09,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted.