./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 eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 16:42:25,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 16:42:25,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 16:42:25,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 16:42:25,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 16:42:25,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 16:42:25,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 16:42:25,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 16:42:25,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 16:42:25,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 16:42:25,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 16:42:25,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 16:42:25,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 16:42:25,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 16:42:25,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 16:42:25,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 16:42:25,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 16:42:25,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 16:42:25,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 16:42:25,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 16:42:25,979 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 16:42:25,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 16:42:25,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 16:42:25,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 16:42:25,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 16:42:25,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 16:42:25,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 16:42:25,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 16:42:25,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 16:42:25,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 16:42:25,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 16:42:25,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 16:42:25,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 16:42:25,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 16:42:25,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 16:42:25,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 16:42:25,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 16:42:25,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 16:42:25,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 16:42:25,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 16:42:26,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 16:42:26,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 16:42:26,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 16:42:26,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 16:42:26,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 16:42:26,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 16:42:26,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 16:42:26,030 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 16:42:26,030 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 16:42:26,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 16:42:26,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 16:42:26,031 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 16:42:26,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 16:42:26,032 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 16:42:26,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 16:42:26,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 16:42:26,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 16:42:26,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 16:42:26,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 16:42:26,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 16:42:26,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 16:42:26,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 16:42:26,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 16:42:26,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 16:42:26,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 16:42:26,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 16:42:26,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 16:42:26,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 16:42:26,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 16:42:26,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 16:42:26,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 16:42:26,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 16:42:26,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 16:42:26,036 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 16:42:26,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 16:42:26,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 16:42:26,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da76b57a1451220816a27c40b8cda655a945b2081fe69d46a431c484896fab87 [2022-07-19 16:42:26,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 16:42:26,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 16:42:26,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 16:42:26,293 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 16:42:26,293 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 16:42:26,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c [2022-07-19 16:42:26,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15549b1c8/5617ef450342467fb9f8a1e3118c1101/FLAG1581c117c [2022-07-19 16:42:26,825 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 16:42:26,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c [2022-07-19 16:42:26,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15549b1c8/5617ef450342467fb9f8a1e3118c1101/FLAG1581c117c [2022-07-19 16:42:27,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15549b1c8/5617ef450342467fb9f8a1e3118c1101 [2022-07-19 16:42:27,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 16:42:27,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 16:42:27,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 16:42:27,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 16:42:27,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 16:42:27,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd49d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27, skipping insertion in model container [2022-07-19 16:42:27,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 16:42:27,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 16:42:27,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c[43703,43716] [2022-07-19 16:42:27,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 16:42:27,651 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 16:42:27,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c[43703,43716] [2022-07-19 16:42:27,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 16:42:27,781 INFO L208 MainTranslator]: Completed translation [2022-07-19 16:42:27,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27 WrapperNode [2022-07-19 16:42:27,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 16:42:27,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 16:42:27,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 16:42:27,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 16:42:27,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,874 INFO L137 Inliner]: procedures = 94, calls = 341, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1104 [2022-07-19 16:42:27,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 16:42:27,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 16:42:27,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 16:42:27,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 16:42:27,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 16:42:27,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 16:42:27,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 16:42:27,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 16:42:27,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (1/1) ... [2022-07-19 16:42:27,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 16:42:27,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:27,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 16:42:27,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 16:42:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 16:42:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-19 16:42:28,046 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-19 16:42:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-19 16:42:28,046 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-19 16:42:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-19 16:42:28,046 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-19 16:42:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-19 16:42:28,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-19 16:42:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-19 16:42:28,049 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-19 16:42:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-07-19 16:42:28,049 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-07-19 16:42:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-19 16:42:28,049 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-19 16:42:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 16:42:28,050 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 16:42:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 16:42:28,050 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 16:42:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-07-19 16:42:28,050 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-07-19 16:42:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-19 16:42:28,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-19 16:42:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-19 16:42:28,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-19 16:42:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-19 16:42:28,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-19 16:42:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-19 16:42:28,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-19 16:42:28,052 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-19 16:42:28,052 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-19 16:42:28,052 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-07-19 16:42:28,052 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-07-19 16:42:28,053 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-19 16:42:28,053 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-19 16:42:28,053 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-19 16:42:28,053 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-19 16:42:28,053 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-19 16:42:28,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-19 16:42:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-19 16:42:28,054 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-19 16:42:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 16:42:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-19 16:42:28,054 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-19 16:42:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-19 16:42:28,054 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-19 16:42:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-19 16:42:28,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-19 16:42:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 16:42:28,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 16:42:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-19 16:42:28,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-19 16:42:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2022-07-19 16:42:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2022-07-19 16:42:28,240 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 16:42:28,241 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 16:42:29,196 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 16:42:29,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 16:42:29,208 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 16:42:29,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 04:42:29 BoogieIcfgContainer [2022-07-19 16:42:29,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 16:42:29,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 16:42:29,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 16:42:29,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 16:42:29,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 04:42:27" (1/3) ... [2022-07-19 16:42:29,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bf146f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 04:42:29, skipping insertion in model container [2022-07-19 16:42:29,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:42:27" (2/3) ... [2022-07-19 16:42:29,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bf146f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 04:42:29, skipping insertion in model container [2022-07-19 16:42:29,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 04:42:29" (3/3) ... [2022-07-19 16:42:29,219 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.c [2022-07-19 16:42:29,232 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 16:42:29,232 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 16:42:29,303 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 16:42:29,309 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4f2e8653, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6b571248 [2022-07-19 16:42:29,310 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 16:42:29,315 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) [2022-07-19 16:42:29,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-19 16:42:29,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:29,331 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] [2022-07-19 16:42:29,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:29,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:29,335 INFO L85 PathProgramCache]: Analyzing trace with hash 861521184, now seen corresponding path program 1 times [2022-07-19 16:42:29,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:29,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978361962] [2022-07-19 16:42:29,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:29,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:29,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:29,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:29,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 16:42:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:29,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 16:42:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:29,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-19 16:42:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:29,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 16:42:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:29,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:29,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978361962] [2022-07-19 16:42:29,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978361962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:29,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:29,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:42:29,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040356050] [2022-07-19 16:42:29,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:29,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:29,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:29,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:42:29,895 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) [2022-07-19 16:42:32,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:32,747 INFO L93 Difference]: Finished difference Result 1224 states and 2043 transitions. [2022-07-19 16:42:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:42:32,750 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 [2022-07-19 16:42:32,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:32,768 INFO L225 Difference]: With dead ends: 1224 [2022-07-19 16:42:32,768 INFO L226 Difference]: Without dead ends: 670 [2022-07-19 16:42:32,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 16:42:32,782 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 646 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:32,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1992 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 16:42:32,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-07-19 16:42:32,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 549. [2022-07-19 16:42:32,873 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) [2022-07-19 16:42:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 901 transitions. [2022-07-19 16:42:32,880 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 901 transitions. Word has length 63 [2022-07-19 16:42:32,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:32,881 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 901 transitions. [2022-07-19 16:42:32,881 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) [2022-07-19 16:42:32,881 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 901 transitions. [2022-07-19 16:42:32,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-19 16:42:32,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:32,885 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] [2022-07-19 16:42:32,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 16:42:32,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:32,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:32,886 INFO L85 PathProgramCache]: Analyzing trace with hash -2026902989, now seen corresponding path program 1 times [2022-07-19 16:42:32,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:32,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263021157] [2022-07-19 16:42:32,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:32,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:33,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:33,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:33,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:42:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 16:42:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:42:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:33,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 16:42:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:33,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:33,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:33,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:33,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263021157] [2022-07-19 16:42:33,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263021157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:33,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:33,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:42:33,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348543597] [2022-07-19 16:42:33,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:33,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:33,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:33,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:33,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:42:33,091 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) [2022-07-19 16:42:35,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:35,473 INFO L93 Difference]: Finished difference Result 1202 states and 1987 transitions. [2022-07-19 16:42:35,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:42:35,474 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 [2022-07-19 16:42:35,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:35,480 INFO L225 Difference]: With dead ends: 1202 [2022-07-19 16:42:35,480 INFO L226 Difference]: Without dead ends: 670 [2022-07-19 16:42:35,483 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 [2022-07-19 16:42:35,484 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 638 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:35,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 2076 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 16:42:35,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-07-19 16:42:35,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 549. [2022-07-19 16:42:35,540 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) [2022-07-19 16:42:35,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 900 transitions. [2022-07-19 16:42:35,544 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 900 transitions. Word has length 64 [2022-07-19 16:42:35,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:35,545 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 900 transitions. [2022-07-19 16:42:35,545 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) [2022-07-19 16:42:35,545 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 900 transitions. [2022-07-19 16:42:35,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-19 16:42:35,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:35,547 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] [2022-07-19 16:42:35,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 16:42:35,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:35,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:35,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1702940924, now seen corresponding path program 1 times [2022-07-19 16:42:35,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:35,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968682043] [2022-07-19 16:42:35,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:35,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:35,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:35,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:35,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 16:42:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:35,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 16:42:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:35,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:42:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:35,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:35,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 16:42:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 16:42:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:35,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:35,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968682043] [2022-07-19 16:42:35,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968682043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:35,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:35,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:42:35,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314353984] [2022-07-19 16:42:35,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:35,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:35,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:35,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:35,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:42:35,694 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) [2022-07-19 16:42:37,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:37,911 INFO L93 Difference]: Finished difference Result 1202 states and 1986 transitions. [2022-07-19 16:42:37,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:42:37,915 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 [2022-07-19 16:42:37,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:37,920 INFO L225 Difference]: With dead ends: 1202 [2022-07-19 16:42:37,921 INFO L226 Difference]: Without dead ends: 670 [2022-07-19 16:42:37,923 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 [2022-07-19 16:42:37,924 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 635 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:37,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 2076 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 16:42:37,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-07-19 16:42:37,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 549. [2022-07-19 16:42:37,958 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) [2022-07-19 16:42:37,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 899 transitions. [2022-07-19 16:42:37,975 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 899 transitions. Word has length 65 [2022-07-19 16:42:37,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:37,976 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 899 transitions. [2022-07-19 16:42:37,981 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) [2022-07-19 16:42:37,981 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 899 transitions. [2022-07-19 16:42:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-19 16:42:37,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:37,986 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] [2022-07-19 16:42:37,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 16:42:37,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:37,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:37,988 INFO L85 PathProgramCache]: Analyzing trace with hash 145697999, now seen corresponding path program 1 times [2022-07-19 16:42:37,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:37,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521957332] [2022-07-19 16:42:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:37,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:38,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:38,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:38,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-19 16:42:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 16:42:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:38,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 16:42:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:38,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:38,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 16:42:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:38,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 16:42:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:38,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:38,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521957332] [2022-07-19 16:42:38,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521957332] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:38,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:38,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:42:38,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507895386] [2022-07-19 16:42:38,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:38,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:38,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:38,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:38,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:42:38,193 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) [2022-07-19 16:42:40,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:40,267 INFO L93 Difference]: Finished difference Result 1202 states and 1985 transitions. [2022-07-19 16:42:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:42:40,267 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 [2022-07-19 16:42:40,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:40,272 INFO L225 Difference]: With dead ends: 1202 [2022-07-19 16:42:40,272 INFO L226 Difference]: Without dead ends: 670 [2022-07-19 16:42:40,275 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 [2022-07-19 16:42:40,276 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 632 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:40,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 1948 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-19 16:42:40,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-07-19 16:42:40,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 549. [2022-07-19 16:42:40,307 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) [2022-07-19 16:42:40,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 898 transitions. [2022-07-19 16:42:40,311 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 898 transitions. Word has length 66 [2022-07-19 16:42:40,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:40,311 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 898 transitions. [2022-07-19 16:42:40,311 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) [2022-07-19 16:42:40,311 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 898 transitions. [2022-07-19 16:42:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-19 16:42:40,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:40,313 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] [2022-07-19 16:42:40,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 16:42:40,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:40,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:40,314 INFO L85 PathProgramCache]: Analyzing trace with hash -2102479656, now seen corresponding path program 1 times [2022-07-19 16:42:40,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:40,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199346957] [2022-07-19 16:42:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:40,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 16:42:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-19 16:42:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 16:42:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 16:42:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:40,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:40,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199346957] [2022-07-19 16:42:40,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199346957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:40,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:40,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:42:40,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653152742] [2022-07-19 16:42:40,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:40,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:40,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:40,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:42:40,457 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) [2022-07-19 16:42:42,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:42,491 INFO L93 Difference]: Finished difference Result 1202 states and 1984 transitions. [2022-07-19 16:42:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:42:42,492 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 [2022-07-19 16:42:42,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:42,496 INFO L225 Difference]: With dead ends: 1202 [2022-07-19 16:42:42,497 INFO L226 Difference]: Without dead ends: 670 [2022-07-19 16:42:42,499 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 [2022-07-19 16:42:42,500 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 629 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:42,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1948 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-19 16:42:42,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-07-19 16:42:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 549. [2022-07-19 16:42:42,541 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) [2022-07-19 16:42:42,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 897 transitions. [2022-07-19 16:42:42,545 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 897 transitions. Word has length 67 [2022-07-19 16:42:42,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:42,545 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 897 transitions. [2022-07-19 16:42:42,546 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) [2022-07-19 16:42:42,546 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 897 transitions. [2022-07-19 16:42:42,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 16:42:42,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:42,547 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] [2022-07-19 16:42:42,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 16:42:42,547 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:42,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:42,548 INFO L85 PathProgramCache]: Analyzing trace with hash 169835, now seen corresponding path program 1 times [2022-07-19 16:42:42,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:42,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385607373] [2022-07-19 16:42:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:42,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 16:42:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 16:42:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 16:42:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 16:42:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:42,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:42,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385607373] [2022-07-19 16:42:42,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385607373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:42,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:42,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 16:42:42,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214522373] [2022-07-19 16:42:42,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:42,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 16:42:42,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:42,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 16:42:42,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 16:42:42,704 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) [2022-07-19 16:42:45,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:45,540 INFO L93 Difference]: Finished difference Result 1227 states and 2028 transitions. [2022-07-19 16:42:45,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 16:42:45,540 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 [2022-07-19 16:42:45,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:45,545 INFO L225 Difference]: With dead ends: 1227 [2022-07-19 16:42:45,545 INFO L226 Difference]: Without dead ends: 699 [2022-07-19 16:42:45,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:42:45,549 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 716 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 2647 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 2816 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:45,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 2816 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 2647 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 16:42:45,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-19 16:42:45,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 569. [2022-07-19 16:42:45,581 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) [2022-07-19 16:42:45,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 926 transitions. [2022-07-19 16:42:45,585 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 926 transitions. Word has length 68 [2022-07-19 16:42:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:45,585 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 926 transitions. [2022-07-19 16:42:45,586 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) [2022-07-19 16:42:45,586 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 926 transitions. [2022-07-19 16:42:45,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 16:42:45,587 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:45,587 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] [2022-07-19 16:42:45,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 16:42:45,587 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:45,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:45,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1006007257, now seen corresponding path program 1 times [2022-07-19 16:42:45,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:45,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880167901] [2022-07-19 16:42:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:45,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 16:42:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 16:42:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:42:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 16:42:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:45,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:45,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880167901] [2022-07-19 16:42:45,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880167901] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:45,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:45,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 16:42:45,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132708235] [2022-07-19 16:42:45,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:45,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 16:42:45,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:45,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 16:42:45,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 16:42:45,750 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) [2022-07-19 16:42:48,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:48,317 INFO L93 Difference]: Finished difference Result 1211 states and 1979 transitions. [2022-07-19 16:42:48,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 16:42:48,317 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 [2022-07-19 16:42:48,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:48,321 INFO L225 Difference]: With dead ends: 1211 [2022-07-19 16:42:48,321 INFO L226 Difference]: Without dead ends: 699 [2022-07-19 16:42:48,323 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 [2022-07-19 16:42:48,324 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 691 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 2625 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 2800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:48,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 2789 Invalid, 2800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2625 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-19 16:42:48,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-19 16:42:48,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 569. [2022-07-19 16:42:48,354 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) [2022-07-19 16:42:48,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 921 transitions. [2022-07-19 16:42:48,358 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 921 transitions. Word has length 69 [2022-07-19 16:42:48,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:48,359 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 921 transitions. [2022-07-19 16:42:48,359 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) [2022-07-19 16:42:48,359 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 921 transitions. [2022-07-19 16:42:48,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-19 16:42:48,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:48,361 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] [2022-07-19 16:42:48,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 16:42:48,361 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:48,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:48,362 INFO L85 PathProgramCache]: Analyzing trace with hash -2086538832, now seen corresponding path program 1 times [2022-07-19 16:42:48,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:48,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85917403] [2022-07-19 16:42:48,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:48,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 16:42:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 16:42:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 16:42:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 16:42:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:48,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:48,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85917403] [2022-07-19 16:42:48,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85917403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:48,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:48,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 16:42:48,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5885057] [2022-07-19 16:42:48,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:48,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 16:42:48,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:48,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 16:42:48,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 16:42:48,518 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) [2022-07-19 16:42:51,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:51,024 INFO L93 Difference]: Finished difference Result 1211 states and 1974 transitions. [2022-07-19 16:42:51,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 16:42:51,025 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 [2022-07-19 16:42:51,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:51,029 INFO L225 Difference]: With dead ends: 1211 [2022-07-19 16:42:51,029 INFO L226 Difference]: Without dead ends: 699 [2022-07-19 16:42:51,032 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 [2022-07-19 16:42:51,033 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 690 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 2600 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 2600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:51,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 2800 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 2600 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 16:42:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-19 16:42:51,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 569. [2022-07-19 16:42:51,064 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) [2022-07-19 16:42:51,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 916 transitions. [2022-07-19 16:42:51,068 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 916 transitions. Word has length 70 [2022-07-19 16:42:51,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:51,068 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 916 transitions. [2022-07-19 16:42:51,068 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) [2022-07-19 16:42:51,068 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 916 transitions. [2022-07-19 16:42:51,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 16:42:51,070 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:51,070 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] [2022-07-19 16:42:51,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 16:42:51,070 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:51,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:51,071 INFO L85 PathProgramCache]: Analyzing trace with hash 915012414, now seen corresponding path program 1 times [2022-07-19 16:42:51,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:51,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512107724] [2022-07-19 16:42:51,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:51,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 16:42:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-19 16:42:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 16:42:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:51,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:51,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512107724] [2022-07-19 16:42:51,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512107724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:51,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:51,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 16:42:51,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798788180] [2022-07-19 16:42:51,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:51,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 16:42:51,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:51,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 16:42:51,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 16:42:51,222 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) [2022-07-19 16:42:53,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:53,499 INFO L93 Difference]: Finished difference Result 1211 states and 1969 transitions. [2022-07-19 16:42:53,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 16:42:53,500 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 [2022-07-19 16:42:53,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:53,504 INFO L225 Difference]: With dead ends: 1211 [2022-07-19 16:42:53,504 INFO L226 Difference]: Without dead ends: 699 [2022-07-19 16:42:53,506 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 [2022-07-19 16:42:53,507 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 689 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:53,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2795 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 16:42:53,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-19 16:42:53,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 569. [2022-07-19 16:42:53,538 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) [2022-07-19 16:42:53,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 911 transitions. [2022-07-19 16:42:53,541 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 911 transitions. Word has length 71 [2022-07-19 16:42:53,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:53,541 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 911 transitions. [2022-07-19 16:42:53,541 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) [2022-07-19 16:42:53,542 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 911 transitions. [2022-07-19 16:42:53,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 16:42:53,543 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:53,543 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] [2022-07-19 16:42:53,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 16:42:53,543 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:53,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:53,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2064383585, now seen corresponding path program 1 times [2022-07-19 16:42:53,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:53,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874968677] [2022-07-19 16:42:53,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:53,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 16:42:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-19 16:42:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 16:42:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:53,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:53,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874968677] [2022-07-19 16:42:53,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874968677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:53,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:53,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:42:53,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458602276] [2022-07-19 16:42:53,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:53,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:53,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:53,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:53,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:42:53,693 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) [2022-07-19 16:42:55,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:55,850 INFO L93 Difference]: Finished difference Result 1238 states and 2003 transitions. [2022-07-19 16:42:55,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 16:42:55,851 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 [2022-07-19 16:42:55,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:55,854 INFO L225 Difference]: With dead ends: 1238 [2022-07-19 16:42:55,854 INFO L226 Difference]: Without dead ends: 732 [2022-07-19 16:42:55,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:42:55,856 INFO L413 NwaCegarLoop]: 887 mSDtfsCounter, 692 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:55,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1921 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-19 16:42:55,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-07-19 16:42:55,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 573. [2022-07-19 16:42:55,888 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) [2022-07-19 16:42:55,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 915 transitions. [2022-07-19 16:42:55,891 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 915 transitions. Word has length 71 [2022-07-19 16:42:55,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:55,891 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 915 transitions. [2022-07-19 16:42:55,892 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) [2022-07-19 16:42:55,892 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 915 transitions. [2022-07-19 16:42:55,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-19 16:42:55,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:55,893 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] [2022-07-19 16:42:55,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 16:42:55,893 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:55,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:55,894 INFO L85 PathProgramCache]: Analyzing trace with hash -439947275, now seen corresponding path program 1 times [2022-07-19 16:42:55,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:55,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264631917] [2022-07-19 16:42:55,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:55,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:42:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:42:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 16:42:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:42:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:56,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:56,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264631917] [2022-07-19 16:42:56,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264631917] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:56,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:56,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 16:42:56,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97816937] [2022-07-19 16:42:56,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:56,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 16:42:56,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:56,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 16:42:56,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 16:42:56,052 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) [2022-07-19 16:42:58,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:58,356 INFO L93 Difference]: Finished difference Result 1221 states and 1973 transitions. [2022-07-19 16:42:58,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 16:42:58,357 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 [2022-07-19 16:42:58,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:58,360 INFO L225 Difference]: With dead ends: 1221 [2022-07-19 16:42:58,360 INFO L226 Difference]: Without dead ends: 705 [2022-07-19 16:42:58,362 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 [2022-07-19 16:42:58,363 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 688 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:58,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 2800 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 16:42:58,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2022-07-19 16:42:58,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 573. [2022-07-19 16:42:58,395 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) [2022-07-19 16:42:58,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 910 transitions. [2022-07-19 16:42:58,397 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 910 transitions. Word has length 72 [2022-07-19 16:42:58,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:58,398 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 910 transitions. [2022-07-19 16:42:58,398 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) [2022-07-19 16:42:58,398 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 910 transitions. [2022-07-19 16:42:58,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-19 16:42:58,399 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:58,399 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] [2022-07-19 16:42:58,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 16:42:58,399 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:58,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:58,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1955223986, now seen corresponding path program 1 times [2022-07-19 16:42:58,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:58,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708600678] [2022-07-19 16:42:58,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:58,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:42:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:42:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 16:42:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:42:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:42:58,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:58,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708600678] [2022-07-19 16:42:58,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708600678] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:58,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:58,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:42:58,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579224673] [2022-07-19 16:42:58,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:58,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:58,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:58,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:58,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:42:58,547 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) [2022-07-19 16:43:00,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:00,555 INFO L93 Difference]: Finished difference Result 1246 states and 2002 transitions. [2022-07-19 16:43:00,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 16:43:00,555 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 [2022-07-19 16:43:00,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:00,559 INFO L225 Difference]: With dead ends: 1246 [2022-07-19 16:43:00,559 INFO L226 Difference]: Without dead ends: 738 [2022-07-19 16:43:00,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:43:00,561 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 695 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:00,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1901 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-19 16:43:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-07-19 16:43:00,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 579. [2022-07-19 16:43:00,591 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) [2022-07-19 16:43:00,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 916 transitions. [2022-07-19 16:43:00,593 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 916 transitions. Word has length 72 [2022-07-19 16:43:00,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:00,594 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 916 transitions. [2022-07-19 16:43:00,594 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) [2022-07-19 16:43:00,594 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 916 transitions. [2022-07-19 16:43:00,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-19 16:43:00,595 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:00,595 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] [2022-07-19 16:43:00,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 16:43:00,596 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:00,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:00,596 INFO L85 PathProgramCache]: Analyzing trace with hash 592207523, now seen corresponding path program 1 times [2022-07-19 16:43:00,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:00,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481378246] [2022-07-19 16:43:00,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:00,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:00,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:00,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:00,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:00,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:43:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:00,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 16:43:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:00,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:00,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 16:43:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:00,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 16:43:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:43:00,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:00,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481378246] [2022-07-19 16:43:00,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481378246] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:00,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:43:00,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 16:43:00,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491448562] [2022-07-19 16:43:00,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:00,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 16:43:00,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:00,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 16:43:00,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 16:43:00,798 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) [2022-07-19 16:43:03,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:03,935 INFO L93 Difference]: Finished difference Result 1251 states and 2005 transitions. [2022-07-19 16:43:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 16:43:03,935 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 [2022-07-19 16:43:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:03,938 INFO L225 Difference]: With dead ends: 1251 [2022-07-19 16:43:03,939 INFO L226 Difference]: Without dead ends: 743 [2022-07-19 16:43:03,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-07-19 16:43:03,941 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 717 mSDsluCounter, 3474 mSDsCounter, 0 mSdLazyCounter, 4096 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 4241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 4096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:03,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 4374 Invalid, 4241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 4096 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-19 16:43:03,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-07-19 16:43:03,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 590. [2022-07-19 16:43:03,976 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) [2022-07-19 16:43:03,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 931 transitions. [2022-07-19 16:43:03,978 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 931 transitions. Word has length 73 [2022-07-19 16:43:03,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:03,979 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 931 transitions. [2022-07-19 16:43:03,979 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) [2022-07-19 16:43:03,979 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 931 transitions. [2022-07-19 16:43:03,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-19 16:43:03,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:03,980 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] [2022-07-19 16:43:03,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 16:43:03,981 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:03,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:03,981 INFO L85 PathProgramCache]: Analyzing trace with hash -234476092, now seen corresponding path program 1 times [2022-07-19 16:43:03,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:03,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259010980] [2022-07-19 16:43:03,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:03,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:04,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:04,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:04,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:43:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:04,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 16:43:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:04,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:04,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 16:43:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 16:43:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:04,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:43:04,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:04,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259010980] [2022-07-19 16:43:04,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259010980] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:04,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:43:04,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:43:04,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537994062] [2022-07-19 16:43:04,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:04,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:43:04,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:04,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:43:04,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:43:04,123 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) [2022-07-19 16:43:06,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:06,272 INFO L93 Difference]: Finished difference Result 1279 states and 2043 transitions. [2022-07-19 16:43:06,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 16:43:06,273 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 [2022-07-19 16:43:06,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:06,276 INFO L225 Difference]: With dead ends: 1279 [2022-07-19 16:43:06,276 INFO L226 Difference]: Without dead ends: 765 [2022-07-19 16:43:06,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:43:06,278 INFO L413 NwaCegarLoop]: 879 mSDtfsCounter, 691 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:06,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1908 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-19 16:43:06,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-07-19 16:43:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 598. [2022-07-19 16:43:06,330 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) [2022-07-19 16:43:06,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 938 transitions. [2022-07-19 16:43:06,333 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 938 transitions. Word has length 73 [2022-07-19 16:43:06,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:06,334 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 938 transitions. [2022-07-19 16:43:06,334 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) [2022-07-19 16:43:06,334 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 938 transitions. [2022-07-19 16:43:06,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-19 16:43:06,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:06,336 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] [2022-07-19 16:43:06,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 16:43:06,337 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:06,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:06,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1222666148, now seen corresponding path program 1 times [2022-07-19 16:43:06,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:06,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73752639] [2022-07-19 16:43:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:06,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:43:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 16:43:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 16:43:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 16:43:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:43:06,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:06,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73752639] [2022-07-19 16:43:06,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73752639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:06,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:43:06,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:43:06,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091340058] [2022-07-19 16:43:06,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:06,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:43:06,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:06,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:43:06,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:43:06,475 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) [2022-07-19 16:43:08,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:08,418 INFO L93 Difference]: Finished difference Result 1317 states and 2081 transitions. [2022-07-19 16:43:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:43:08,419 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 [2022-07-19 16:43:08,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:08,422 INFO L225 Difference]: With dead ends: 1317 [2022-07-19 16:43:08,422 INFO L226 Difference]: Without dead ends: 716 [2022-07-19 16:43:08,423 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 [2022-07-19 16:43:08,424 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 629 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:08,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 2009 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 16:43:08,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-07-19 16:43:08,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 579. [2022-07-19 16:43:08,455 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) [2022-07-19 16:43:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 911 transitions. [2022-07-19 16:43:08,457 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 911 transitions. Word has length 73 [2022-07-19 16:43:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:08,458 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 911 transitions. [2022-07-19 16:43:08,458 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) [2022-07-19 16:43:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 911 transitions. [2022-07-19 16:43:08,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-19 16:43:08,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:08,459 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] [2022-07-19 16:43:08,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 16:43:08,460 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:08,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1639184969, now seen corresponding path program 1 times [2022-07-19 16:43:08,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:08,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32147229] [2022-07-19 16:43:08,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:08,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:08,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:08,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:08,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 16:43:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:08,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:08,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 16:43:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:08,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 16:43:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:08,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:43:08,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:08,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32147229] [2022-07-19 16:43:08,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32147229] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:08,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:43:08,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:43:08,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359605153] [2022-07-19 16:43:08,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:08,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:43:08,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:08,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:43:08,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:43:08,585 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) [2022-07-19 16:43:10,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:10,637 INFO L93 Difference]: Finished difference Result 1264 states and 2006 transitions. [2022-07-19 16:43:10,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 16:43:10,637 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 [2022-07-19 16:43:10,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:10,641 INFO L225 Difference]: With dead ends: 1264 [2022-07-19 16:43:10,641 INFO L226 Difference]: Without dead ends: 749 [2022-07-19 16:43:10,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:43:10,643 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 673 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:10,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1898 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-19 16:43:10,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-07-19 16:43:10,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 589. [2022-07-19 16:43:10,675 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) [2022-07-19 16:43:10,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 921 transitions. [2022-07-19 16:43:10,677 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 921 transitions. Word has length 74 [2022-07-19 16:43:10,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:10,677 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 921 transitions. [2022-07-19 16:43:10,678 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) [2022-07-19 16:43:10,678 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 921 transitions. [2022-07-19 16:43:10,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-19 16:43:10,679 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:10,679 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] [2022-07-19 16:43:10,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 16:43:10,679 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:10,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:10,680 INFO L85 PathProgramCache]: Analyzing trace with hash 102707193, now seen corresponding path program 1 times [2022-07-19 16:43:10,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:10,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856331016] [2022-07-19 16:43:10,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:10,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-19 16:43:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 16:43:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 16:43:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 16:43:10,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:10,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856331016] [2022-07-19 16:43:10,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856331016] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:10,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:43:10,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 16:43:10,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146162535] [2022-07-19 16:43:10,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:10,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:43:10,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:43:10,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 16:43:10,837 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) [2022-07-19 16:43:13,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:13,512 INFO L93 Difference]: Finished difference Result 1842 states and 2964 transitions. [2022-07-19 16:43:13,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:43:13,512 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 [2022-07-19 16:43:13,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:13,518 INFO L225 Difference]: With dead ends: 1842 [2022-07-19 16:43:13,519 INFO L226 Difference]: Without dead ends: 1329 [2022-07-19 16:43:13,520 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 [2022-07-19 16:43:13,521 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 1876 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:13,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 1531 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 16:43:13,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-07-19 16:43:13,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1026. [2022-07-19 16:43:13,590 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) [2022-07-19 16:43:13,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1633 transitions. [2022-07-19 16:43:13,594 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1633 transitions. Word has length 75 [2022-07-19 16:43:13,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:13,595 INFO L495 AbstractCegarLoop]: Abstraction has 1026 states and 1633 transitions. [2022-07-19 16:43:13,595 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) [2022-07-19 16:43:13,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1633 transitions. [2022-07-19 16:43:13,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-19 16:43:13,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:13,599 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] [2022-07-19 16:43:13,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 16:43:13,599 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:13,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1304070991, now seen corresponding path program 1 times [2022-07-19 16:43:13,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:13,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630660732] [2022-07-19 16:43:13,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:13,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:43:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 16:43:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:13,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 16:43:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:14,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 16:43:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:14,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:14,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 16:43:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:14,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 16:43:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-19 16:43:14,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:14,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630660732] [2022-07-19 16:43:14,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630660732] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:14,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809539338] [2022-07-19 16:43:14,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:14,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:14,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:14,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:14,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 16:43:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:14,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:43:14,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:14,333 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-19 16:43:14,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:14,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809539338] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:14,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:14,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 16 [2022-07-19 16:43:14,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250349071] [2022-07-19 16:43:14,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:14,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 16:43:14,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:14,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 16:43:14,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-07-19 16:43:14,348 INFO L87 Difference]: Start difference. First operand 1026 states and 1633 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (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) [2022-07-19 16:43:14,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:14,489 INFO L93 Difference]: Finished difference Result 2914 states and 4759 transitions. [2022-07-19 16:43:14,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 16:43:14,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (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 128 [2022-07-19 16:43:14,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:14,501 INFO L225 Difference]: With dead ends: 2914 [2022-07-19 16:43:14,501 INFO L226 Difference]: Without dead ends: 1965 [2022-07-19 16:43:14,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-07-19 16:43:14,507 INFO L413 NwaCegarLoop]: 976 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, 1788 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 [2022-07-19 16:43:14,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1788 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 16:43:14,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2022-07-19 16:43:14,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1953. [2022-07-19 16:43:14,640 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) [2022-07-19 16:43:14,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 3162 transitions. [2022-07-19 16:43:14,648 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 3162 transitions. Word has length 128 [2022-07-19 16:43:14,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:14,649 INFO L495 AbstractCegarLoop]: Abstraction has 1953 states and 3162 transitions. [2022-07-19 16:43:14,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (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) [2022-07-19 16:43:14,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 3162 transitions. [2022-07-19 16:43:14,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-19 16:43:14,653 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:14,653 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] [2022-07-19 16:43:14,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 16:43:14,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-19 16:43:14,867 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:14,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:14,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1578830605, now seen corresponding path program 1 times [2022-07-19 16:43:14,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:14,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126678391] [2022-07-19 16:43:14,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:14,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:14,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:43:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 16:43:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 16:43:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 16:43:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 16:43:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 16:43:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-19 16:43:15,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:15,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126678391] [2022-07-19 16:43:15,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126678391] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:15,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303939774] [2022-07-19 16:43:15,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:15,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:15,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:15,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:15,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 16:43:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:15,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 16:43:15,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:15,734 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 16:43:15,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:15,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303939774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:15,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:15,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-07-19 16:43:15,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171426927] [2022-07-19 16:43:15,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:15,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:43:15,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:15,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:43:15,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-07-19 16:43:15,737 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) [2022-07-19 16:43:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:16,248 INFO L93 Difference]: Finished difference Result 3862 states and 6413 transitions. [2022-07-19 16:43:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:43:16,248 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 [2022-07-19 16:43:16,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:16,258 INFO L225 Difference]: With dead ends: 3862 [2022-07-19 16:43:16,258 INFO L226 Difference]: Without dead ends: 1985 [2022-07-19 16:43:16,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-19 16:43:16,269 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 819 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 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 [2022-07-19 16:43:16,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 2148 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 16:43:16,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2022-07-19 16:43:16,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1985. [2022-07-19 16:43:16,421 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) [2022-07-19 16:43:16,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 3214 transitions. [2022-07-19 16:43:16,430 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 3214 transitions. Word has length 128 [2022-07-19 16:43:16,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:16,431 INFO L495 AbstractCegarLoop]: Abstraction has 1985 states and 3214 transitions. [2022-07-19 16:43:16,431 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) [2022-07-19 16:43:16,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 3214 transitions. [2022-07-19 16:43:16,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-19 16:43:16,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:16,436 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] [2022-07-19 16:43:16,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 16:43:16,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:16,658 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:16,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:16,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1324400244, now seen corresponding path program 1 times [2022-07-19 16:43:16,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:16,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079977760] [2022-07-19 16:43:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:16,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:16,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:16,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:16,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:16,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:16,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 16:43:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 16:43:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 16:43:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-19 16:43:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 16:43:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 16:43:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-19 16:43:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,031 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 16:43:17,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:17,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079977760] [2022-07-19 16:43:17,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079977760] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:17,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227234163] [2022-07-19 16:43:17,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:17,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:17,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:17,034 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:17,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 16:43:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:17,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 16:43:17,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-19 16:43:17,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:17,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227234163] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:17,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:17,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2022-07-19 16:43:17,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852518319] [2022-07-19 16:43:17,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:17,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:43:17,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:17,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:43:17,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-19 16:43:17,373 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) [2022-07-19 16:43:17,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:17,919 INFO L93 Difference]: Finished difference Result 5134 states and 8314 transitions. [2022-07-19 16:43:17,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 16:43:17,920 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 [2022-07-19 16:43:17,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:17,936 INFO L225 Difference]: With dead ends: 5134 [2022-07-19 16:43:17,937 INFO L226 Difference]: Without dead ends: 3225 [2022-07-19 16:43:17,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-07-19 16:43:17,946 INFO L413 NwaCegarLoop]: 1171 mSDtfsCounter, 849 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 4583 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:17,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 4583 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 16:43:17,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2022-07-19 16:43:18,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 3219. [2022-07-19 16:43:18,171 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) [2022-07-19 16:43:18,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3219 states to 3219 states and 5148 transitions. [2022-07-19 16:43:18,186 INFO L78 Accepts]: Start accepts. Automaton has 3219 states and 5148 transitions. Word has length 130 [2022-07-19 16:43:18,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:18,187 INFO L495 AbstractCegarLoop]: Abstraction has 3219 states and 5148 transitions. [2022-07-19 16:43:18,187 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) [2022-07-19 16:43:18,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3219 states and 5148 transitions. [2022-07-19 16:43:18,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-19 16:43:18,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:18,193 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] [2022-07-19 16:43:18,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 16:43:18,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:18,408 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:18,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:18,408 INFO L85 PathProgramCache]: Analyzing trace with hash 388925211, now seen corresponding path program 1 times [2022-07-19 16:43:18,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:18,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40272722] [2022-07-19 16:43:18,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:18,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 16:43:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 16:43:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-19 16:43:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 16:43:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 16:43:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 16:43:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:18,813 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 16:43:18,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:18,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40272722] [2022-07-19 16:43:18,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40272722] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:18,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161205080] [2022-07-19 16:43:18,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:18,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:18,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:18,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:18,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 16:43:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:19,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 16:43:19,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-19 16:43:19,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:19,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161205080] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:19,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:19,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-07-19 16:43:19,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288790238] [2022-07-19 16:43:19,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:19,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:43:19,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:19,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:43:19,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-07-19 16:43:19,187 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) [2022-07-19 16:43:19,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:19,693 INFO L93 Difference]: Finished difference Result 6426 states and 10599 transitions. [2022-07-19 16:43:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:43:19,694 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 [2022-07-19 16:43:19,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:19,709 INFO L225 Difference]: With dead ends: 6426 [2022-07-19 16:43:19,709 INFO L226 Difference]: Without dead ends: 3283 [2022-07-19 16:43:19,724 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 [2022-07-19 16:43:19,724 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 800 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 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 [2022-07-19 16:43:19,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2148 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 16:43:19,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states. [2022-07-19 16:43:19,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 3283. [2022-07-19 16:43:19,953 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) [2022-07-19 16:43:19,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 5252 transitions. [2022-07-19 16:43:19,968 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 5252 transitions. Word has length 131 [2022-07-19 16:43:19,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:19,968 INFO L495 AbstractCegarLoop]: Abstraction has 3283 states and 5252 transitions. [2022-07-19 16:43:19,969 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) [2022-07-19 16:43:19,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 5252 transitions. [2022-07-19 16:43:19,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-19 16:43:19,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:19,974 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] [2022-07-19 16:43:19,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 16:43:20,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:20,191 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:20,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:20,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2128821267, now seen corresponding path program 1 times [2022-07-19 16:43:20,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:20,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113768745] [2022-07-19 16:43:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:20,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 16:43:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 16:43:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 16:43:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 16:43:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 16:43:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-19 16:43:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-19 16:43:20,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:20,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113768745] [2022-07-19 16:43:20,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113768745] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:20,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651083999] [2022-07-19 16:43:20,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:20,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:20,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:20,574 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:20,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 16:43:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:20,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 16:43:20,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-19 16:43:20,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:20,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651083999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:20,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:20,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-07-19 16:43:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965276810] [2022-07-19 16:43:20,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:20,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:43:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:20,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:43:20,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-07-19 16:43:20,953 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) [2022-07-19 16:43:21,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:21,479 INFO L93 Difference]: Finished difference Result 6554 states and 10783 transitions. [2022-07-19 16:43:21,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:43:21,480 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 [2022-07-19 16:43:21,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:21,496 INFO L225 Difference]: With dead ends: 6554 [2022-07-19 16:43:21,496 INFO L226 Difference]: Without dead ends: 3347 [2022-07-19 16:43:21,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-19 16:43:21,513 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 796 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 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 [2022-07-19 16:43:21,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 2148 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 16:43:21,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2022-07-19 16:43:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3347. [2022-07-19 16:43:21,711 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) [2022-07-19 16:43:21,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 5356 transitions. [2022-07-19 16:43:21,727 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 5356 transitions. Word has length 134 [2022-07-19 16:43:21,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:21,727 INFO L495 AbstractCegarLoop]: Abstraction has 3347 states and 5356 transitions. [2022-07-19 16:43:21,727 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) [2022-07-19 16:43:21,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 5356 transitions. [2022-07-19 16:43:21,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-19 16:43:21,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:21,731 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] [2022-07-19 16:43:21,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 16:43:21,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-19 16:43:21,948 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:21,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:21,948 INFO L85 PathProgramCache]: Analyzing trace with hash 385245007, now seen corresponding path program 1 times [2022-07-19 16:43:21,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:21,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927318383] [2022-07-19 16:43:21,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:21,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 16:43:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 16:43:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-19 16:43:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 16:43:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-19 16:43:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 16:43:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,329 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 16:43:22,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:22,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927318383] [2022-07-19 16:43:22,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927318383] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:22,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732500440] [2022-07-19 16:43:22,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:22,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:22,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:22,332 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:22,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 16:43:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:22,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 16:43:22,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-19 16:43:22,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:22,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732500440] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:22,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:22,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-07-19 16:43:22,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506357573] [2022-07-19 16:43:22,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:22,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:43:22,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:22,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:43:22,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-07-19 16:43:22,683 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) [2022-07-19 16:43:23,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:23,173 INFO L93 Difference]: Finished difference Result 6682 states and 10967 transitions. [2022-07-19 16:43:23,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:43:23,173 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 [2022-07-19 16:43:23,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:23,187 INFO L225 Difference]: With dead ends: 6682 [2022-07-19 16:43:23,188 INFO L226 Difference]: Without dead ends: 3411 [2022-07-19 16:43:23,203 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 [2022-07-19 16:43:23,203 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 813 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 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 [2022-07-19 16:43:23,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 2148 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 16:43:23,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2022-07-19 16:43:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 3411. [2022-07-19 16:43:23,399 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) [2022-07-19 16:43:23,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 5460 transitions. [2022-07-19 16:43:23,410 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 5460 transitions. Word has length 137 [2022-07-19 16:43:23,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:23,411 INFO L495 AbstractCegarLoop]: Abstraction has 3411 states and 5460 transitions. [2022-07-19 16:43:23,411 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) [2022-07-19 16:43:23,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 5460 transitions. [2022-07-19 16:43:23,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-19 16:43:23,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:23,415 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] [2022-07-19 16:43:23,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-19 16:43:23,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:23,640 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:23,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:23,641 INFO L85 PathProgramCache]: Analyzing trace with hash -323803479, now seen corresponding path program 1 times [2022-07-19 16:43:23,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:23,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968697204] [2022-07-19 16:43:23,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:23,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:23,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:23,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 16:43:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 16:43:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 16:43:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 16:43:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-19 16:43:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,070 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-19 16:43:24,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:24,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968697204] [2022-07-19 16:43:24,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968697204] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:24,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053266583] [2022-07-19 16:43:24,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:24,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:24,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:24,076 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:24,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 16:43:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:24,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-19 16:43:24,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:24,479 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 16:43:24,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:24,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053266583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:24,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:24,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 20 [2022-07-19 16:43:24,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851913505] [2022-07-19 16:43:24,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:24,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:43:24,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:24,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:43:24,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-07-19 16:43:24,483 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) [2022-07-19 16:43:26,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:26,003 INFO L93 Difference]: Finished difference Result 6898 states and 11097 transitions. [2022-07-19 16:43:26,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:43:26,003 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 [2022-07-19 16:43:26,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:26,019 INFO L225 Difference]: With dead ends: 6898 [2022-07-19 16:43:26,019 INFO L226 Difference]: Without dead ends: 3568 [2022-07-19 16:43:26,031 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 [2022-07-19 16:43:26,031 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 1472 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:26,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1579 Valid, 1732 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 16:43:26,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2022-07-19 16:43:26,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3298. [2022-07-19 16:43:26,261 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) [2022-07-19 16:43:26,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 5229 transitions. [2022-07-19 16:43:26,278 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 5229 transitions. Word has length 140 [2022-07-19 16:43:26,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:26,279 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 5229 transitions. [2022-07-19 16:43:26,279 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) [2022-07-19 16:43:26,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 5229 transitions. [2022-07-19 16:43:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-19 16:43:26,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:26,283 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] [2022-07-19 16:43:26,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-19 16:43:26,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:26,487 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash 408163947, now seen corresponding path program 1 times [2022-07-19 16:43:26,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:26,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602021821] [2022-07-19 16:43:26,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:26,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 16:43:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 16:43:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 16:43:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 16:43:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-19 16:43:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-19 16:43:26,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:26,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602021821] [2022-07-19 16:43:26,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602021821] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:26,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631870408] [2022-07-19 16:43:26,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:26,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:26,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:26,906 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:26,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 16:43:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:27,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-19 16:43:27,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-19 16:43:27,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:27,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631870408] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:27,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:27,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 22 [2022-07-19 16:43:27,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693043712] [2022-07-19 16:43:27,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:27,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 16:43:27,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:27,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 16:43:27,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-07-19 16:43:27,316 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) [2022-07-19 16:43:30,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:30,031 INFO L93 Difference]: Finished difference Result 7639 states and 12220 transitions. [2022-07-19 16:43:30,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 16:43:30,032 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 [2022-07-19 16:43:30,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:30,078 INFO L225 Difference]: With dead ends: 7639 [2022-07-19 16:43:30,079 INFO L226 Difference]: Without dead ends: 4419 [2022-07-19 16:43:30,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=981, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 16:43:30,086 INFO L413 NwaCegarLoop]: 1210 mSDtfsCounter, 2882 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 4204 mSolverCounterSat, 661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2971 SdHoareTripleChecker+Valid, 3333 SdHoareTripleChecker+Invalid, 4865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 661 IncrementalHoareTripleChecker+Valid, 4204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:30,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2971 Valid, 3333 Invalid, 4865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [661 Valid, 4204 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 16:43:30,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4419 states. [2022-07-19 16:43:30,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4419 to 3824. [2022-07-19 16:43:30,299 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) [2022-07-19 16:43:30,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3824 states to 3824 states and 6076 transitions. [2022-07-19 16:43:30,320 INFO L78 Accepts]: Start accepts. Automaton has 3824 states and 6076 transitions. Word has length 140 [2022-07-19 16:43:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:30,320 INFO L495 AbstractCegarLoop]: Abstraction has 3824 states and 6076 transitions. [2022-07-19 16:43:30,320 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) [2022-07-19 16:43:30,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3824 states and 6076 transitions. [2022-07-19 16:43:30,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 16:43:30,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:30,324 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] [2022-07-19 16:43:30,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 16:43:30,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-19 16:43:30,539 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:30,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:30,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1808790549, now seen corresponding path program 1 times [2022-07-19 16:43:30,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:30,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450131423] [2022-07-19 16:43:30,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:30,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 16:43:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 16:43:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 16:43:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-19 16:43:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-19 16:43:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:30,887 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-19 16:43:30,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:30,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450131423] [2022-07-19 16:43:30,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450131423] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:30,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904571719] [2022-07-19 16:43:30,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:30,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:30,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:30,889 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:30,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 16:43:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:31,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-19 16:43:31,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:31,321 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-19 16:43:31,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:31,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904571719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:31,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:31,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2022-07-19 16:43:31,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24213405] [2022-07-19 16:43:31,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:31,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 16:43:31,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:31,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 16:43:31,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-19 16:43:31,324 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) [2022-07-19 16:43:34,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:34,851 INFO L93 Difference]: Finished difference Result 10329 states and 16779 transitions. [2022-07-19 16:43:34,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 16:43:34,852 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 [2022-07-19 16:43:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:34,886 INFO L225 Difference]: With dead ends: 10329 [2022-07-19 16:43:34,886 INFO L226 Difference]: Without dead ends: 6583 [2022-07-19 16:43:34,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2022-07-19 16:43:34,900 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 2720 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 5421 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2821 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 6228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 5421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:34,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2821 Valid, 3189 Invalid, 6228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 5421 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-19 16:43:34,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2022-07-19 16:43:35,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 5961. [2022-07-19 16:43:35,235 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) [2022-07-19 16:43:35,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5961 states to 5961 states and 9592 transitions. [2022-07-19 16:43:35,268 INFO L78 Accepts]: Start accepts. Automaton has 5961 states and 9592 transitions. Word has length 142 [2022-07-19 16:43:35,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:35,269 INFO L495 AbstractCegarLoop]: Abstraction has 5961 states and 9592 transitions. [2022-07-19 16:43:35,269 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) [2022-07-19 16:43:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5961 states and 9592 transitions. [2022-07-19 16:43:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-19 16:43:35,272 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:35,272 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] [2022-07-19 16:43:35,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-19 16:43:35,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-19 16:43:35,487 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:35,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:35,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2003295559, now seen corresponding path program 1 times [2022-07-19 16:43:35,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:35,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184047354] [2022-07-19 16:43:35,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:35,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 16:43:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 16:43:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:43:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 16:43:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-19 16:43:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-19 16:43:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-19 16:43:35,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:35,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184047354] [2022-07-19 16:43:35,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184047354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:35,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:43:35,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 16:43:35,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436507781] [2022-07-19 16:43:35,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:35,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 16:43:35,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:35,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 16:43:35,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:43:35,799 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) [2022-07-19 16:43:50,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:50,358 INFO L93 Difference]: Finished difference Result 27713 states and 46514 transitions. [2022-07-19 16:43:50,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-19 16:43:50,358 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 [2022-07-19 16:43:50,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:50,475 INFO L225 Difference]: With dead ends: 27713 [2022-07-19 16:43:50,476 INFO L226 Difference]: Without dead ends: 21834 [2022-07-19 16:43:50,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2022-07-19 16:43:50,512 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 8094 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 5632 mSolverCounterSat, 4923 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8154 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 10555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4923 IncrementalHoareTripleChecker+Valid, 5632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:50,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8154 Valid, 2738 Invalid, 10555 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4923 Valid, 5632 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-07-19 16:43:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21834 states. [2022-07-19 16:43:51,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21834 to 6005. [2022-07-19 16:43:51,478 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) [2022-07-19 16:43:51,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6005 states to 6005 states and 9626 transitions. [2022-07-19 16:43:51,512 INFO L78 Accepts]: Start accepts. Automaton has 6005 states and 9626 transitions. Word has length 147 [2022-07-19 16:43:51,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:51,512 INFO L495 AbstractCegarLoop]: Abstraction has 6005 states and 9626 transitions. [2022-07-19 16:43:51,513 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) [2022-07-19 16:43:51,513 INFO L276 IsEmpty]: Start isEmpty. Operand 6005 states and 9626 transitions. [2022-07-19 16:43:51,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-19 16:43:51,516 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:51,516 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] [2022-07-19 16:43:51,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-19 16:43:51,517 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:51,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:51,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1632140215, now seen corresponding path program 1 times [2022-07-19 16:43:51,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:51,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62629198] [2022-07-19 16:43:51,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:51,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 16:43:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 16:43:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:43:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 16:43:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-19 16:43:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-19 16:43:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:51,907 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-19 16:43:51,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:51,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62629198] [2022-07-19 16:43:51,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62629198] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:51,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800348953] [2022-07-19 16:43:51,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:51,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:51,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:51,910 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:52,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-19 16:43:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:52,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-19 16:43:52,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-19 16:43:52,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:52,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800348953] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:52,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:52,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-07-19 16:43:52,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832851770] [2022-07-19 16:43:52,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:52,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:43:52,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:52,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:43:52,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-07-19 16:43:52,431 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) [2022-07-19 16:43:53,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:53,113 INFO L93 Difference]: Finished difference Result 6142 states and 9910 transitions. [2022-07-19 16:43:53,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 16:43:53,114 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 [2022-07-19 16:43:53,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:53,153 INFO L225 Difference]: With dead ends: 6142 [2022-07-19 16:43:53,154 INFO L226 Difference]: Without dead ends: 6140 [2022-07-19 16:43:53,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-07-19 16:43:53,160 INFO L413 NwaCegarLoop]: 991 mSDtfsCounter, 360 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 4508 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:53,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 4508 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 16:43:53,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2022-07-19 16:43:53,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 6005. [2022-07-19 16:43:53,869 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) [2022-07-19 16:43:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6005 states to 6005 states and 9596 transitions. [2022-07-19 16:43:53,892 INFO L78 Accepts]: Start accepts. Automaton has 6005 states and 9596 transitions. Word has length 147 [2022-07-19 16:43:53,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:53,893 INFO L495 AbstractCegarLoop]: Abstraction has 6005 states and 9596 transitions. [2022-07-19 16:43:53,893 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) [2022-07-19 16:43:53,893 INFO L276 IsEmpty]: Start isEmpty. Operand 6005 states and 9596 transitions. [2022-07-19 16:43:53,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-19 16:43:53,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:53,896 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] [2022-07-19 16:43:53,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-19 16:43:54,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-19 16:43:54,097 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:54,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:54,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1721447028, now seen corresponding path program 1 times [2022-07-19 16:43:54,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:54,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264780730] [2022-07-19 16:43:54,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:54,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 16:43:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 16:43:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:43:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 16:43:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 16:43:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 16:43:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:43:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-19 16:43:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-19 16:43:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-19 16:43:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:54,440 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-19 16:43:54,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:54,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264780730] [2022-07-19 16:43:54,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264780730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:54,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:43:54,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 16:43:54,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037730341] [2022-07-19 16:43:54,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:54,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 16:43:54,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:54,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 16:43:54,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-19 16:43:54,441 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) [2022-07-19 16:44:07,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:07,087 INFO L93 Difference]: Finished difference Result 23718 states and 39980 transitions. [2022-07-19 16:44:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-19 16:44:07,088 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 [2022-07-19 16:44:07,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:07,199 INFO L225 Difference]: With dead ends: 23718 [2022-07-19 16:44:07,199 INFO L226 Difference]: Without dead ends: 17791 [2022-07-19 16:44:07,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=186, Invalid=366, Unknown=0, NotChecked=0, Total=552 [2022-07-19 16:44:07,241 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 3880 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 5114 mSolverCounterSat, 1788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4056 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 6902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 5114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-07-19 16:44:07,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4056 Valid, 2448 Invalid, 6902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 5114 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-07-19 16:44:07,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17791 states. [2022-07-19 16:44:08,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17791 to 6029. [2022-07-19 16:44:08,379 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) [2022-07-19 16:44:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6029 states to 6029 states and 9620 transitions. [2022-07-19 16:44:08,401 INFO L78 Accepts]: Start accepts. Automaton has 6029 states and 9620 transitions. Word has length 170 [2022-07-19 16:44:08,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:08,402 INFO L495 AbstractCegarLoop]: Abstraction has 6029 states and 9620 transitions. [2022-07-19 16:44:08,402 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) [2022-07-19 16:44:08,402 INFO L276 IsEmpty]: Start isEmpty. Operand 6029 states and 9620 transitions. [2022-07-19 16:44:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-19 16:44:08,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:08,406 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] [2022-07-19 16:44:08,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-19 16:44:08,407 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:08,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:08,407 INFO L85 PathProgramCache]: Analyzing trace with hash 663422447, now seen corresponding path program 1 times [2022-07-19 16:44:08,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:08,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976895979] [2022-07-19 16:44:08,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:08,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:44:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:44:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 16:44:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 16:44:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 16:44:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 16:44:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 16:44:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-19 16:44:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-19 16:44:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-19 16:44:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-07-19 16:44:08,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:08,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976895979] [2022-07-19 16:44:08,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976895979] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:44:08,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076747379] [2022-07-19 16:44:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:08,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:08,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:44:08,757 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:44:08,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-19 16:44:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:08,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:44:08,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:44:09,069 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-19 16:44:09,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:44:09,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076747379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:44:09,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:44:09,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-19 16:44:09,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846223769] [2022-07-19 16:44:09,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:44:09,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:44:09,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:09,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:44:09,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:44:09,072 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) [2022-07-19 16:44:09,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:09,857 INFO L93 Difference]: Finished difference Result 12214 states and 19710 transitions. [2022-07-19 16:44:09,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:44:09,857 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 [2022-07-19 16:44:09,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:09,890 INFO L225 Difference]: With dead ends: 12214 [2022-07-19 16:44:09,890 INFO L226 Difference]: Without dead ends: 6263 [2022-07-19 16:44:09,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-19 16:44:09,915 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 [2022-07-19 16:44:09,915 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] [2022-07-19 16:44:09,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6263 states. [2022-07-19 16:44:10,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6263 to 6263. [2022-07-19 16:44:10,759 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) [2022-07-19 16:44:10,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6263 states to 6263 states and 10058 transitions. [2022-07-19 16:44:10,781 INFO L78 Accepts]: Start accepts. Automaton has 6263 states and 10058 transitions. Word has length 176 [2022-07-19 16:44:10,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:10,781 INFO L495 AbstractCegarLoop]: Abstraction has 6263 states and 10058 transitions. [2022-07-19 16:44:10,782 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) [2022-07-19 16:44:10,782 INFO L276 IsEmpty]: Start isEmpty. Operand 6263 states and 10058 transitions. [2022-07-19 16:44:10,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-19 16:44:10,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:10,785 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] [2022-07-19 16:44:10,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-19 16:44:10,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:10,986 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:10,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:10,987 INFO L85 PathProgramCache]: Analyzing trace with hash 620224811, now seen corresponding path program 1 times [2022-07-19 16:44:10,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:10,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324418364] [2022-07-19 16:44:10,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:10,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:44:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:44:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 16:44:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 16:44:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 16:44:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 16:44:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-19 16:44:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-19 16:44:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-19 16:44:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-07-19 16:44:11,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:11,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324418364] [2022-07-19 16:44:11,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324418364] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:44:11,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753441931] [2022-07-19 16:44:11,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:11,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:11,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:44:11,312 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:44:11,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-19 16:44:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:11,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:44:11,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:44:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-19 16:44:11,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:44:11,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753441931] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:44:11,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:44:11,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-19 16:44:11,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756927926] [2022-07-19 16:44:11,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:44:11,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:44:11,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:11,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:44:11,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:44:11,565 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) [2022-07-19 16:44:12,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:12,499 INFO L93 Difference]: Finished difference Result 12682 states and 20574 transitions. [2022-07-19 16:44:12,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:44:12,500 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 [2022-07-19 16:44:12,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:12,529 INFO L225 Difference]: With dead ends: 12682 [2022-07-19 16:44:12,529 INFO L226 Difference]: Without dead ends: 6497 [2022-07-19 16:44:12,557 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 [2022-07-19 16:44:12,557 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 [2022-07-19 16:44:12,558 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] [2022-07-19 16:44:12,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6497 states. [2022-07-19 16:44:13,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6497 to 6497. [2022-07-19 16:44:13,443 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) [2022-07-19 16:44:13,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6497 states to 6497 states and 10496 transitions. [2022-07-19 16:44:13,465 INFO L78 Accepts]: Start accepts. Automaton has 6497 states and 10496 transitions. Word has length 181 [2022-07-19 16:44:13,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:13,466 INFO L495 AbstractCegarLoop]: Abstraction has 6497 states and 10496 transitions. [2022-07-19 16:44:13,466 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) [2022-07-19 16:44:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 6497 states and 10496 transitions. [2022-07-19 16:44:13,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-19 16:44:13,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:13,471 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] [2022-07-19 16:44:13,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-19 16:44:13,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:13,681 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:13,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:13,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1373818149, now seen corresponding path program 1 times [2022-07-19 16:44:13,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:13,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931310496] [2022-07-19 16:44:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:13,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:44:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:44:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 16:44:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 16:44:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 16:44:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-19 16:44:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-19 16:44:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-19 16:44:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-19 16:44:13,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:13,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931310496] [2022-07-19 16:44:13,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931310496] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:44:13,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573524695] [2022-07-19 16:44:13,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:13,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:13,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:44:13,980 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:44:14,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-19 16:44:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:14,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:44:14,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:44:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 16:44:14,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:44:14,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573524695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:44:14,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:44:14,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-19 16:44:14,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358792648] [2022-07-19 16:44:14,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:44:14,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:44:14,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:14,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:44:14,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:44:14,238 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) [2022-07-19 16:44:15,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:15,089 INFO L93 Difference]: Finished difference Result 13150 states and 21438 transitions. [2022-07-19 16:44:15,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:44:15,090 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 [2022-07-19 16:44:15,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:15,114 INFO L225 Difference]: With dead ends: 13150 [2022-07-19 16:44:15,114 INFO L226 Difference]: Without dead ends: 6731 [2022-07-19 16:44:15,132 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 [2022-07-19 16:44:15,133 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 [2022-07-19 16:44:15,133 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] [2022-07-19 16:44:15,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6731 states. [2022-07-19 16:44:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6731 to 6731. [2022-07-19 16:44:15,985 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) [2022-07-19 16:44:16,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6731 states to 6731 states and 10934 transitions. [2022-07-19 16:44:16,006 INFO L78 Accepts]: Start accepts. Automaton has 6731 states and 10934 transitions. Word has length 185 [2022-07-19 16:44:16,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:16,007 INFO L495 AbstractCegarLoop]: Abstraction has 6731 states and 10934 transitions. [2022-07-19 16:44:16,007 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) [2022-07-19 16:44:16,007 INFO L276 IsEmpty]: Start isEmpty. Operand 6731 states and 10934 transitions. [2022-07-19 16:44:16,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-19 16:44:16,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:16,011 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] [2022-07-19 16:44:16,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-19 16:44:16,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-07-19 16:44:16,212 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:16,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:16,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1287445809, now seen corresponding path program 1 times [2022-07-19 16:44:16,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:16,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629318361] [2022-07-19 16:44:16,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:16,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:44:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:44:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 16:44:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 16:44:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-19 16:44:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-19 16:44:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-19 16:44:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,531 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-19 16:44:16,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:16,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629318361] [2022-07-19 16:44:16,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629318361] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:44:16,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107055563] [2022-07-19 16:44:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:16,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:16,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:44:16,535 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:44:16,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-19 16:44:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:16,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:44:16,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:44:16,778 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-19 16:44:16,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:44:16,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107055563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:44:16,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:44:16,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-19 16:44:16,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934693585] [2022-07-19 16:44:16,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:44:16,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:44:16,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:16,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:44:16,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:44:16,782 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) [2022-07-19 16:44:17,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:17,653 INFO L93 Difference]: Finished difference Result 13618 states and 22302 transitions. [2022-07-19 16:44:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:44:17,653 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 [2022-07-19 16:44:17,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:17,678 INFO L225 Difference]: With dead ends: 13618 [2022-07-19 16:44:17,679 INFO L226 Difference]: Without dead ends: 6965 [2022-07-19 16:44:17,697 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 [2022-07-19 16:44:17,697 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 [2022-07-19 16:44:17,698 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] [2022-07-19 16:44:17,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2022-07-19 16:44:18,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6965. [2022-07-19 16:44:18,514 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) [2022-07-19 16:44:18,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 11372 transitions. [2022-07-19 16:44:18,536 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 11372 transitions. Word has length 188 [2022-07-19 16:44:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:18,536 INFO L495 AbstractCegarLoop]: Abstraction has 6965 states and 11372 transitions. [2022-07-19 16:44:18,537 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) [2022-07-19 16:44:18,537 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 11372 transitions. [2022-07-19 16:44:18,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-19 16:44:18,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:18,541 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] [2022-07-19 16:44:18,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-19 16:44:18,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:18,742 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:18,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:18,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1681263421, now seen corresponding path program 1 times [2022-07-19 16:44:18,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:18,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386755068] [2022-07-19 16:44:18,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:18,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:18,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:18,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:18,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:18,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:44:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:18,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:44:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-19 16:44:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-19 16:44:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-19 16:44:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-19 16:44:19,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:19,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386755068] [2022-07-19 16:44:19,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386755068] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:44:19,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062248789] [2022-07-19 16:44:19,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:19,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:19,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:44:19,099 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:44:19,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-19 16:44:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:19,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 37 conjunts are in the unsatisfiable core [2022-07-19 16:44:19,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:44:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-07-19 16:44:19,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:44:19,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062248789] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:44:19,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:44:19,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2022-07-19 16:44:19,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724101158] [2022-07-19 16:44:19,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:44:19,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 16:44:19,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:19,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 16:44:19,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-07-19 16:44:19,547 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) [2022-07-19 16:44:23,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:23,272 INFO L93 Difference]: Finished difference Result 21710 states and 36126 transitions. [2022-07-19 16:44:23,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 16:44:23,272 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 [2022-07-19 16:44:23,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:23,335 INFO L225 Difference]: With dead ends: 21710 [2022-07-19 16:44:23,335 INFO L226 Difference]: Without dead ends: 11508 [2022-07-19 16:44:23,377 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 [2022-07-19 16:44:23,377 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 1959 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 4073 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 4591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 4073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:44:23,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 2853 Invalid, 4591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 4073 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 16:44:23,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11508 states. [2022-07-19 16:44:24,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11508 to 11152. [2022-07-19 16:44:24,751 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) [2022-07-19 16:44:24,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11152 states to 11152 states and 18271 transitions. [2022-07-19 16:44:24,790 INFO L78 Accepts]: Start accepts. Automaton has 11152 states and 18271 transitions. Word has length 190 [2022-07-19 16:44:24,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:24,790 INFO L495 AbstractCegarLoop]: Abstraction has 11152 states and 18271 transitions. [2022-07-19 16:44:24,790 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) [2022-07-19 16:44:24,791 INFO L276 IsEmpty]: Start isEmpty. Operand 11152 states and 18271 transitions. [2022-07-19 16:44:24,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-19 16:44:24,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:24,799 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] [2022-07-19 16:44:24,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-19 16:44:25,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:25,000 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:25,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:25,000 INFO L85 PathProgramCache]: Analyzing trace with hash -429588659, now seen corresponding path program 1 times [2022-07-19 16:44:25,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:25,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014802236] [2022-07-19 16:44:25,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:25,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:44:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:44:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-19 16:44:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-19 16:44:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-19 16:44:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:25,258 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-19 16:44:25,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:25,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014802236] [2022-07-19 16:44:25,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014802236] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:44:25,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:44:25,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 16:44:25,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775201696] [2022-07-19 16:44:25,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:44:25,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 16:44:25,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:25,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 16:44:25,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-19 16:44:25,261 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) [2022-07-19 16:44:30,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:30,696 INFO L93 Difference]: Finished difference Result 25096 states and 41930 transitions. [2022-07-19 16:44:30,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 16:44:30,696 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 [2022-07-19 16:44:30,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:30,746 INFO L225 Difference]: With dead ends: 25096 [2022-07-19 16:44:30,746 INFO L226 Difference]: Without dead ends: 13894 [2022-07-19 16:44:30,773 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 [2022-07-19 16:44:30,773 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 1503 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 2766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-19 16:44:30,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 1782 Invalid, 2766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-19 16:44:30,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13894 states. [2022-07-19 16:44:32,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13894 to 11174. [2022-07-19 16:44:32,140 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) [2022-07-19 16:44:32,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11174 states to 11174 states and 18250 transitions. [2022-07-19 16:44:32,177 INFO L78 Accepts]: Start accepts. Automaton has 11174 states and 18250 transitions. Word has length 190 [2022-07-19 16:44:32,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:32,177 INFO L495 AbstractCegarLoop]: Abstraction has 11174 states and 18250 transitions. [2022-07-19 16:44:32,177 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) [2022-07-19 16:44:32,177 INFO L276 IsEmpty]: Start isEmpty. Operand 11174 states and 18250 transitions. [2022-07-19 16:44:32,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-19 16:44:32,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:32,186 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] [2022-07-19 16:44:32,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-19 16:44:32,187 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:32,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:32,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2105572543, now seen corresponding path program 1 times [2022-07-19 16:44:32,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:32,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587969184] [2022-07-19 16:44:32,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:32,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 16:44:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 16:44:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-19 16:44:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-19 16:44:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-19 16:44:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-19 16:44:32,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:32,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587969184] [2022-07-19 16:44:32,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587969184] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:44:32,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894117738] [2022-07-19 16:44:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:32,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:32,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:44:32,605 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:44:32,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-19 16:44:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:32,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 16:44:32,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:44:32,949 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-19 16:44:32,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:44:32,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894117738] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:44:32,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:44:32,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 19 [2022-07-19 16:44:32,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814542892] [2022-07-19 16:44:32,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:44:32,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 16:44:32,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:32,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 16:44:32,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-07-19 16:44:32,952 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) [2022-07-19 16:44:34,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:34,348 INFO L93 Difference]: Finished difference Result 21838 states and 35793 transitions. [2022-07-19 16:44:34,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 16:44:34,349 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 [2022-07-19 16:44:34,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:34,385 INFO L225 Difference]: With dead ends: 21838 [2022-07-19 16:44:34,386 INFO L226 Difference]: Without dead ends: 10379 [2022-07-19 16:44:34,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-07-19 16:44:34,416 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 [2022-07-19 16:44:34,416 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] [2022-07-19 16:44:34,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10379 states. [2022-07-19 16:44:35,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10379 to 10379. [2022-07-19 16:44:35,605 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) [2022-07-19 16:44:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 17002 transitions. [2022-07-19 16:44:35,640 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 17002 transitions. Word has length 196 [2022-07-19 16:44:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:35,640 INFO L495 AbstractCegarLoop]: Abstraction has 10379 states and 17002 transitions. [2022-07-19 16:44:35,640 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) [2022-07-19 16:44:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 17002 transitions. [2022-07-19 16:44:35,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-07-19 16:44:35,655 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:35,656 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] [2022-07-19 16:44:35,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-07-19 16:44:35,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-07-19 16:44:35,864 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:35,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:35,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1406658870, now seen corresponding path program 1 times [2022-07-19 16:44:35,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:35,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372506388] [2022-07-19 16:44:35,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:35,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:44:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 16:44:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-19 16:44:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 16:44:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-19 16:44:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 16:44:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 16:44:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 16:44:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 16:44:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 16:44:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 16:44:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 16:44:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 16:44:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-19 16:44:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 16:44:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2022-07-19 16:44:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-07-19 16:44:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-07-19 16:44:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-07-19 16:44:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2022-07-19 16:44:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:36,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 84 proven. 152 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2022-07-19 16:44:36,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:36,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372506388] [2022-07-19 16:44:36,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372506388] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:44:36,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729621882] [2022-07-19 16:44:36,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:36,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:36,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:44:36,592 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:44:36,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-19 16:44:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:37,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 4094 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 16:44:37,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:44:37,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-07-19 16:44:37,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:44:37,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729621882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:44:37,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:44:37,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2022-07-19 16:44:37,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956696457] [2022-07-19 16:44:37,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:44:37,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 16:44:37,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:37,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 16:44:37,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-07-19 16:44:37,219 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) [2022-07-19 16:44:38,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:38,998 INFO L93 Difference]: Finished difference Result 21295 states and 35310 transitions. [2022-07-19 16:44:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 16:44:38,998 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 [2022-07-19 16:44:38,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:39,059 INFO L225 Difference]: With dead ends: 21295 [2022-07-19 16:44:39,059 INFO L226 Difference]: Without dead ends: 15837 [2022-07-19 16:44:39,086 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 [2022-07-19 16:44:39,086 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 [2022-07-19 16:44:39,087 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] [2022-07-19 16:44:39,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15837 states. [2022-07-19 16:44:40,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15837 to 15835. [2022-07-19 16:44:40,944 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) [2022-07-19 16:44:41,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15835 states to 15835 states and 26150 transitions. [2022-07-19 16:44:41,001 INFO L78 Accepts]: Start accepts. Automaton has 15835 states and 26150 transitions. Word has length 552 [2022-07-19 16:44:41,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:41,003 INFO L495 AbstractCegarLoop]: Abstraction has 15835 states and 26150 transitions. [2022-07-19 16:44:41,003 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) [2022-07-19 16:44:41,003 INFO L276 IsEmpty]: Start isEmpty. Operand 15835 states and 26150 transitions. [2022-07-19 16:44:41,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-07-19 16:44:41,025 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:41,025 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] [2022-07-19 16:44:41,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-19 16:44:41,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-07-19 16:44:41,251 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:41,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:41,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1253831751, now seen corresponding path program 1 times [2022-07-19 16:44:41,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:41,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660935101] [2022-07-19 16:44:41,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:41,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:44:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 16:44:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-19 16:44:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 16:44:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-19 16:44:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 16:44:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 16:44:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 16:44:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 16:44:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 16:44:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 16:44:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 16:44:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 16:44:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:41,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 16:44:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-19 16:44:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-07-19 16:44:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2022-07-19 16:44:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2022-07-19 16:44:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2022-07-19 16:44:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-07-19 16:44:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 84 proven. 152 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2022-07-19 16:44:42,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:42,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660935101] [2022-07-19 16:44:42,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660935101] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:44:42,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751460621] [2022-07-19 16:44:42,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:42,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:42,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:44:42,024 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:44:42,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-19 16:44:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:42,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 4095 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:44:42,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:44:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-07-19 16:44:42,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:44:42,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751460621] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:44:42,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:44:42,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-19 16:44:42,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504898006] [2022-07-19 16:44:42,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:44:42,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:44:42,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:42,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:44:42,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-19 16:44:42,619 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) [2022-07-19 16:44:44,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:44,682 INFO L93 Difference]: Finished difference Result 31733 states and 52942 transitions. [2022-07-19 16:44:44,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:44:44,682 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 [2022-07-19 16:44:44,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:44,742 INFO L225 Difference]: With dead ends: 31733 [2022-07-19 16:44:44,742 INFO L226 Difference]: Without dead ends: 15970 [2022-07-19 16:44:44,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 674 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-19 16:44:44,790 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 38 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-07-19 16:44:44,790 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] [2022-07-19 16:44:44,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15970 states. [2022-07-19 16:44:46,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15970 to 15970. [2022-07-19 16:44:46,652 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) [2022-07-19 16:44:46,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15970 states to 15970 states and 26360 transitions. [2022-07-19 16:44:46,717 INFO L78 Accepts]: Start accepts. Automaton has 15970 states and 26360 transitions. Word has length 553 [2022-07-19 16:44:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:46,718 INFO L495 AbstractCegarLoop]: Abstraction has 15970 states and 26360 transitions. [2022-07-19 16:44:46,718 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) [2022-07-19 16:44:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 15970 states and 26360 transitions. [2022-07-19 16:44:46,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-07-19 16:44:46,729 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:46,730 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] [2022-07-19 16:44:46,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-19 16:44:46,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-07-19 16:44:46,937 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:46,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1347188903, now seen corresponding path program 1 times [2022-07-19 16:44:46,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:46,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747870896] [2022-07-19 16:44:46,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:46,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:44:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 16:44:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-19 16:44:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 16:44:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-19 16:44:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 16:44:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 16:44:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 16:44:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 16:44:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 16:44:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:44:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 16:44:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 16:44:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 16:44:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 16:44:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-19 16:44:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2022-07-19 16:44:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-07-19 16:44:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-07-19 16:44:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-07-19 16:44:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2022-07-19 16:44:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 86 proven. 151 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2022-07-19 16:44:47,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:47,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747870896] [2022-07-19 16:44:47,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747870896] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:44:47,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628145714] [2022-07-19 16:44:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:47,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:47,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:44:47,696 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:44:47,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-19 16:44:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:48,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 4096 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:44:48,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:44:48,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2022-07-19 16:44:48,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:44:48,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628145714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:44:48,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:44:48,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-19 16:44:48,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727466043] [2022-07-19 16:44:48,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:44:48,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:44:48,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:48,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:44:48,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-19 16:44:48,266 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) [2022-07-19 16:44:50,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:44:50,201 INFO L93 Difference]: Finished difference Result 32003 states and 53302 transitions. [2022-07-19 16:44:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:44:50,202 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 [2022-07-19 16:44:50,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:44:50,269 INFO L225 Difference]: With dead ends: 32003 [2022-07-19 16:44:50,269 INFO L226 Difference]: Without dead ends: 16105 [2022-07-19 16:44:50,322 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 [2022-07-19 16:44:50,323 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 [2022-07-19 16:44:50,323 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] [2022-07-19 16:44:50,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16105 states. [2022-07-19 16:44:52,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16105 to 16105. [2022-07-19 16:44:52,232 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) [2022-07-19 16:44:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16105 states to 16105 states and 26570 transitions. [2022-07-19 16:44:52,296 INFO L78 Accepts]: Start accepts. Automaton has 16105 states and 26570 transitions. Word has length 554 [2022-07-19 16:44:52,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:44:52,297 INFO L495 AbstractCegarLoop]: Abstraction has 16105 states and 26570 transitions. [2022-07-19 16:44:52,297 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) [2022-07-19 16:44:52,297 INFO L276 IsEmpty]: Start isEmpty. Operand 16105 states and 26570 transitions. [2022-07-19 16:44:52,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-07-19 16:44:52,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:44:52,312 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] [2022-07-19 16:44:52,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-19 16:44:52,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:52,531 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:44:52,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:44:52,532 INFO L85 PathProgramCache]: Analyzing trace with hash 505079203, now seen corresponding path program 1 times [2022-07-19 16:44:52,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:44:52,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422032854] [2022-07-19 16:44:52,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:52,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:44:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:44:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:44:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:52,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 16:44:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-19 16:44:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:44:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:44:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:44:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:44:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:44:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:44:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:44:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 16:44:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-19 16:44:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:44:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:44:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-19 16:44:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:44:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 16:44:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 16:44:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 16:44:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:44:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 16:44:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 16:44:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 16:44:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 16:44:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-19 16:44:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2022-07-19 16:44:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:44:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-07-19 16:44:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-07-19 16:44:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:44:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-07-19 16:44:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2022-07-19 16:44:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 88 proven. 150 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2022-07-19 16:44:53,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:44:53,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422032854] [2022-07-19 16:44:53,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422032854] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:44:53,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175823099] [2022-07-19 16:44:53,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:44:53,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:44:53,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:44:53,204 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:44:53,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-19 16:44:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:44:53,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 4096 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 16:44:53,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:44:54,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 759 proven. 264 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-07-19 16:44:54,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 16:44:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 131 proven. 36 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. [2022-07-19 16:44:54,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175823099] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 16:44:54,871 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 16:44:54,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6, 5] total 24 [2022-07-19 16:44:54,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992169635] [2022-07-19 16:44:54,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 16:44:54,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-19 16:44:54,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:44:54,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-19 16:44:54,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2022-07-19 16:44:54,873 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)