./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_spec3_product27.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 4f7f32f81229c7756ac3848f16abf37868e5b5283c2f5648c26317015a8240dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 05:51:34,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 05:51:34,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 05:51:35,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 05:51:35,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 05:51:35,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 05:51:35,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 05:51:35,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 05:51:35,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 05:51:35,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 05:51:35,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 05:51:35,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 05:51:35,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 05:51:35,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 05:51:35,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 05:51:35,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 05:51:35,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 05:51:35,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 05:51:35,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 05:51:35,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 05:51:35,076 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 05:51:35,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 05:51:35,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 05:51:35,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 05:51:35,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 05:51:35,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 05:51:35,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 05:51:35,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 05:51:35,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 05:51:35,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 05:51:35,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 05:51:35,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 05:51:35,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 05:51:35,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 05:51:35,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 05:51:35,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 05:51:35,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 05:51:35,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 05:51:35,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 05:51:35,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 05:51:35,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 05:51:35,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 05:51:35,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 05:51:35,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 05:51:35,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 05:51:35,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 05:51:35,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 05:51:35,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 05:51:35,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 05:51:35,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 05:51:35,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 05:51:35,132 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 05:51:35,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 05:51:35,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 05:51:35,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 05:51:35,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 05:51:35,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 05:51:35,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 05:51:35,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 05:51:35,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 05:51:35,134 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 05:51:35,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 05:51:35,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 05:51:35,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 05:51:35,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 05:51:35,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 05:51:35,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 05:51:35,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:51:35,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 05:51:35,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 05:51:35,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 05:51:35,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 05:51:35,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 05:51:35,138 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 05:51:35,138 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 05:51:35,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 05:51:35,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f7f32f81229c7756ac3848f16abf37868e5b5283c2f5648c26317015a8240dd [2022-07-12 05:51:35,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 05:51:35,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 05:51:35,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 05:51:35,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 05:51:35,399 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 05:51:35,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product27.cil.c [2022-07-12 05:51:35,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc9b2fb9/79b578870b514931ab3ee2e3fdf83bb0/FLAGdfbe502d0 [2022-07-12 05:51:35,920 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 05:51:35,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product27.cil.c [2022-07-12 05:51:35,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc9b2fb9/79b578870b514931ab3ee2e3fdf83bb0/FLAGdfbe502d0 [2022-07-12 05:51:36,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc9b2fb9/79b578870b514931ab3ee2e3fdf83bb0 [2022-07-12 05:51:36,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 05:51:36,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 05:51:36,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 05:51:36,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 05:51:36,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 05:51:36,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:36,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b79b70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36, skipping insertion in model container [2022-07-12 05:51:36,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:36,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 05:51:36,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 05:51:36,722 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_spec3_product27.cil.c[73003,73016] [2022-07-12 05:51:36,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:51:36,733 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 05:51:36,853 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_spec3_product27.cil.c[73003,73016] [2022-07-12 05:51:36,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:51:36,883 INFO L208 MainTranslator]: Completed translation [2022-07-12 05:51:36,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36 WrapperNode [2022-07-12 05:51:36,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 05:51:36,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 05:51:36,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 05:51:36,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 05:51:36,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:36,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:37,022 INFO L137 Inliner]: procedures = 93, calls = 348, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1135 [2022-07-12 05:51:37,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 05:51:37,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 05:51:37,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 05:51:37,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 05:51:37,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:37,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:37,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:37,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:37,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:37,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:37,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:37,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 05:51:37,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 05:51:37,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 05:51:37,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 05:51:37,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (1/1) ... [2022-07-12 05:51:37,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:51:37,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:51:37,135 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) [2022-07-12 05:51:37,136 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 [2022-07-12 05:51:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 05:51:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2022-07-12 05:51:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2022-07-12 05:51:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-12 05:51:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-12 05:51:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-12 05:51:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-12 05:51:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-12 05:51:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-12 05:51:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-12 05:51:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-12 05:51:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-07-12 05:51:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-07-12 05:51:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-12 05:51:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-12 05:51:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 05:51:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 05:51:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 05:51:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 05:51:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-07-12 05:51:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-07-12 05:51:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-12 05:51:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-12 05:51:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-12 05:51:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-12 05:51:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-12 05:51:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-12 05:51:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-12 05:51:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-12 05:51:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2022-07-12 05:51:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2022-07-12 05:51:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-12 05:51:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-12 05:51:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-07-12 05:51:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-07-12 05:51:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-12 05:51:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-12 05:51:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2022-07-12 05:51:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2022-07-12 05:51:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-12 05:51:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-12 05:51:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-12 05:51:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-12 05:51:37,182 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-12 05:51:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-12 05:51:37,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 05:51:37,182 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-07-12 05:51:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-07-12 05:51:37,183 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-12 05:51:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-12 05:51:37,183 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-12 05:51:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-12 05:51:37,183 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-12 05:51:37,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-12 05:51:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 05:51:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 05:51:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-12 05:51:37,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-12 05:51:37,366 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 05:51:37,368 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 05:51:38,235 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 05:51:38,250 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 05:51:38,251 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 05:51:38,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:51:38 BoogieIcfgContainer [2022-07-12 05:51:38,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 05:51:38,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 05:51:38,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 05:51:38,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 05:51:38,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 05:51:36" (1/3) ... [2022-07-12 05:51:38,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fb5306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:51:38, skipping insertion in model container [2022-07-12 05:51:38,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:51:36" (2/3) ... [2022-07-12 05:51:38,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fb5306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:51:38, skipping insertion in model container [2022-07-12 05:51:38,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:51:38" (3/3) ... [2022-07-12 05:51:38,262 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product27.cil.c [2022-07-12 05:51:38,275 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 05:51:38,275 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 05:51:38,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 05:51:38,340 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@53f9bd75, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1ba57fac [2022-07-12 05:51:38,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 05:51:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 598 states, 461 states have (on average 1.6702819956616053) internal successors, (770), 479 states have internal predecessors, (770), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) [2022-07-12 05:51:38,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-12 05:51:38,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:51:38,377 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:51:38,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:51:38,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:51:38,381 INFO L85 PathProgramCache]: Analyzing trace with hash -363175274, now seen corresponding path program 1 times [2022-07-12 05:51:38,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:51:38,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724720202] [2022-07-12 05:51:38,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:51:38,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:51:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:38,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:51:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:51:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:51:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:51:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 05:51:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 05:51:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:51:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 05:51:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:51:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 05:51:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:39,213 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:51:39,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:51:39,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724720202] [2022-07-12 05:51:39,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724720202] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:51:39,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:51:39,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:51:39,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172759464] [2022-07-12 05:51:39,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:51:39,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:51:39,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:51:39,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:51:39,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:51:39,257 INFO L87 Difference]: Start difference. First operand has 598 states, 461 states have (on average 1.6702819956616053) internal successors, (770), 479 states have internal predecessors, (770), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:51:46,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:51:46,690 INFO L93 Difference]: Finished difference Result 1556 states and 2676 transitions. [2022-07-12 05:51:46,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:51:46,692 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2022-07-12 05:51:46,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:51:46,712 INFO L225 Difference]: With dead ends: 1556 [2022-07-12 05:51:46,713 INFO L226 Difference]: Without dead ends: 958 [2022-07-12 05:51:46,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:51:46,726 INFO L413 NwaCegarLoop]: 1003 mSDtfsCounter, 1220 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 5790 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 6143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 5790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:51:46,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 3840 Invalid, 6143 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [353 Valid, 5790 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-07-12 05:51:46,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2022-07-12 05:51:46,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 601. [2022-07-12 05:51:46,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 464 states have (on average 1.6616379310344827) internal successors, (771), 482 states have internal predecessors, (771), 109 states have call successors, (109), 27 states have call predecessors, (109), 27 states have return successors, (108), 104 states have call predecessors, (108), 106 states have call successors, (108) [2022-07-12 05:51:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 988 transitions. [2022-07-12 05:51:46,930 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 988 transitions. Word has length 113 [2022-07-12 05:51:46,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:51:46,931 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 988 transitions. [2022-07-12 05:51:46,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:51:46,932 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 988 transitions. [2022-07-12 05:51:46,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 05:51:46,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:51:46,940 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:51:46,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 05:51:46,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:51:46,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:51:46,941 INFO L85 PathProgramCache]: Analyzing trace with hash 356217210, now seen corresponding path program 1 times [2022-07-12 05:51:46,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:51:46,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132030681] [2022-07-12 05:51:46,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:51:46,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:51:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:51:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:51:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:51:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:51:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:51:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:51:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:51:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:51:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:51:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 05:51:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:47,341 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:51:47,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:51:47,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132030681] [2022-07-12 05:51:47,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132030681] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:51:47,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:51:47,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:51:47,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446581297] [2022-07-12 05:51:47,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:51:47,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:51:47,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:51:47,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:51:47,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:51:47,346 INFO L87 Difference]: Start difference. First operand 601 states and 988 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:51:52,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:51:52,364 INFO L93 Difference]: Finished difference Result 1542 states and 2616 transitions. [2022-07-12 05:51:52,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 05:51:52,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-07-12 05:51:52,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:51:52,375 INFO L225 Difference]: With dead ends: 1542 [2022-07-12 05:51:52,375 INFO L226 Difference]: Without dead ends: 957 [2022-07-12 05:51:52,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:51:52,379 INFO L413 NwaCegarLoop]: 967 mSDtfsCounter, 2262 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 2707 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 3511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 2707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:51:52,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 2160 Invalid, 3511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 2707 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-12 05:51:52,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2022-07-12 05:51:52,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 601. [2022-07-12 05:51:52,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 464 states have (on average 1.6594827586206897) internal successors, (770), 482 states have internal predecessors, (770), 109 states have call successors, (109), 27 states have call predecessors, (109), 27 states have return successors, (108), 104 states have call predecessors, (108), 106 states have call successors, (108) [2022-07-12 05:51:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 987 transitions. [2022-07-12 05:51:52,455 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 987 transitions. Word has length 114 [2022-07-12 05:51:52,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:51:52,459 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 987 transitions. [2022-07-12 05:51:52,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:51:52,459 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 987 transitions. [2022-07-12 05:51:52,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 05:51:52,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:51:52,469 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:51:52,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 05:51:52,469 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:51:52,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:51:52,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1403689930, now seen corresponding path program 1 times [2022-07-12 05:51:52,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:51:52,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500362844] [2022-07-12 05:51:52,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:51:52,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:51:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:51:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:51:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:51:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:51:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:51:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:51:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:51:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:51:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:51:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 05:51:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:52,809 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:51:52,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:51:52,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500362844] [2022-07-12 05:51:52,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500362844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:51:52,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:51:52,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:51:52,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194396523] [2022-07-12 05:51:52,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:51:52,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:51:52,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:51:52,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:51:52,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:51:52,814 INFO L87 Difference]: Start difference. First operand 601 states and 987 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:51:57,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:51:57,448 INFO L93 Difference]: Finished difference Result 1537 states and 2602 transitions. [2022-07-12 05:51:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:51:57,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-07-12 05:51:57,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:51:57,455 INFO L225 Difference]: With dead ends: 1537 [2022-07-12 05:51:57,455 INFO L226 Difference]: Without dead ends: 921 [2022-07-12 05:51:57,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:51:57,459 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 1091 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 2962 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 3310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 2962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:51:57,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 2263 Invalid, 3310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 2962 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 05:51:57,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-07-12 05:51:57,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 577. [2022-07-12 05:51:57,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 443 states have (on average 1.6501128668171559) internal successors, (731), 459 states have internal predecessors, (731), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 05:51:57,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 944 transitions. [2022-07-12 05:51:57,524 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 944 transitions. Word has length 114 [2022-07-12 05:51:57,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:51:57,525 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 944 transitions. [2022-07-12 05:51:57,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:51:57,525 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 944 transitions. [2022-07-12 05:51:57,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-12 05:51:57,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:51:57,528 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:51:57,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 05:51:57,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:51:57,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:51:57,529 INFO L85 PathProgramCache]: Analyzing trace with hash -195049630, now seen corresponding path program 1 times [2022-07-12 05:51:57,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:51:57,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876839642] [2022-07-12 05:51:57,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:51:57,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:51:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:51:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:51:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:51:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:51:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 05:51:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:51:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:51:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:51:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 05:51:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:51:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:51:57,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:51:57,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876839642] [2022-07-12 05:51:57,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876839642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:51:57,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:51:57,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:51:57,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814860987] [2022-07-12 05:51:57,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:51:57,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:51:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:51:57,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:51:57,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:51:57,900 INFO L87 Difference]: Start difference. First operand 577 states and 944 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:03,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:03,384 INFO L93 Difference]: Finished difference Result 1500 states and 2533 transitions. [2022-07-12 05:52:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:52:03,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2022-07-12 05:52:03,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:03,391 INFO L225 Difference]: With dead ends: 1500 [2022-07-12 05:52:03,400 INFO L226 Difference]: Without dead ends: 915 [2022-07-12 05:52:03,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:52:03,420 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 2235 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 5364 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 6168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 5364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:03,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2348 Valid, 3502 Invalid, 6168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 5364 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-12 05:52:03,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-07-12 05:52:03,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 571. [2022-07-12 05:52:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 437 states have (on average 1.643020594965675) internal successors, (718), 453 states have internal predecessors, (718), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 05:52:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 931 transitions. [2022-07-12 05:52:03,553 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 931 transitions. Word has length 115 [2022-07-12 05:52:03,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:03,556 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 931 transitions. [2022-07-12 05:52:03,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:03,556 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 931 transitions. [2022-07-12 05:52:03,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 05:52:03,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:03,560 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:03,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 05:52:03,560 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:03,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:03,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1073224542, now seen corresponding path program 1 times [2022-07-12 05:52:03,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:03,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482566124] [2022-07-12 05:52:03,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:03,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:52:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:52:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:52:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 05:52:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 05:52:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 05:52:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 05:52:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:52:03,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:03,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482566124] [2022-07-12 05:52:03,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482566124] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:03,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:52:03,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:52:03,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130971218] [2022-07-12 05:52:03,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:03,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:52:03,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:03,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:52:03,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:52:03,926 INFO L87 Difference]: Start difference. First operand 571 states and 931 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:52:08,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:08,090 INFO L93 Difference]: Finished difference Result 1470 states and 2482 transitions. [2022-07-12 05:52:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:52:08,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2022-07-12 05:52:08,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:08,097 INFO L225 Difference]: With dead ends: 1470 [2022-07-12 05:52:08,097 INFO L226 Difference]: Without dead ends: 915 [2022-07-12 05:52:08,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:52:08,101 INFO L413 NwaCegarLoop]: 912 mSDtfsCounter, 1635 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 2625 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 3200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 2625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:08,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 2116 Invalid, 3200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 2625 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 05:52:08,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-07-12 05:52:08,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 571. [2022-07-12 05:52:08,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 437 states have (on average 1.6407322654462242) internal successors, (717), 453 states have internal predecessors, (717), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 05:52:08,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 930 transitions. [2022-07-12 05:52:08,207 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 930 transitions. Word has length 116 [2022-07-12 05:52:08,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:08,207 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 930 transitions. [2022-07-12 05:52:08,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:52:08,208 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 930 transitions. [2022-07-12 05:52:08,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-12 05:52:08,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:08,212 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:08,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 05:52:08,212 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:08,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:08,213 INFO L85 PathProgramCache]: Analyzing trace with hash 985652415, now seen corresponding path program 1 times [2022-07-12 05:52:08,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:08,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141709930] [2022-07-12 05:52:08,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:08,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:52:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:52:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 05:52:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 05:52:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 05:52:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:52:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:52:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:52:08,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:08,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141709930] [2022-07-12 05:52:08,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141709930] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:08,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:52:08,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:52:08,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443604072] [2022-07-12 05:52:08,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:08,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:52:08,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:08,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:52:08,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:52:08,549 INFO L87 Difference]: Start difference. First operand 571 states and 930 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:13,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:13,721 INFO L93 Difference]: Finished difference Result 1488 states and 2502 transitions. [2022-07-12 05:52:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:52:13,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2022-07-12 05:52:13,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:13,727 INFO L225 Difference]: With dead ends: 1488 [2022-07-12 05:52:13,727 INFO L226 Difference]: Without dead ends: 909 [2022-07-12 05:52:13,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:52:13,731 INFO L413 NwaCegarLoop]: 927 mSDtfsCounter, 1681 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 5375 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 3497 SdHoareTripleChecker+Invalid, 5949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 5375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:13,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 3497 Invalid, 5949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 5375 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-07-12 05:52:13,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2022-07-12 05:52:13,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 565. [2022-07-12 05:52:13,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 431 states have (on average 1.6334106728538282) internal successors, (704), 447 states have internal predecessors, (704), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 05:52:13,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 917 transitions. [2022-07-12 05:52:13,810 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 917 transitions. Word has length 117 [2022-07-12 05:52:13,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:13,810 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 917 transitions. [2022-07-12 05:52:13,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:13,811 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 917 transitions. [2022-07-12 05:52:13,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-12 05:52:13,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:13,813 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:13,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 05:52:13,814 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:13,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:13,814 INFO L85 PathProgramCache]: Analyzing trace with hash -872781980, now seen corresponding path program 1 times [2022-07-12 05:52:13,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:13,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574519950] [2022-07-12 05:52:13,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:13,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 05:52:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:52:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:52:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 05:52:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:52:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 05:52:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 05:52:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:52:14,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:14,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574519950] [2022-07-12 05:52:14,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574519950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:14,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:52:14,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:52:14,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700271719] [2022-07-12 05:52:14,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:14,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:52:14,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:14,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:52:14,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:52:14,136 INFO L87 Difference]: Start difference. First operand 565 states and 917 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:52:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:18,473 INFO L93 Difference]: Finished difference Result 1458 states and 2453 transitions. [2022-07-12 05:52:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:52:18,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2022-07-12 05:52:18,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:18,479 INFO L225 Difference]: With dead ends: 1458 [2022-07-12 05:52:18,479 INFO L226 Difference]: Without dead ends: 909 [2022-07-12 05:52:18,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:52:18,482 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 1077 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 2745 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 2745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:18,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 2152 Invalid, 3101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 2745 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-12 05:52:18,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2022-07-12 05:52:18,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 565. [2022-07-12 05:52:18,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 431 states have (on average 1.631090487238979) internal successors, (703), 447 states have internal predecessors, (703), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 05:52:18,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 916 transitions. [2022-07-12 05:52:18,562 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 916 transitions. Word has length 118 [2022-07-12 05:52:18,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:18,562 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 916 transitions. [2022-07-12 05:52:18,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:52:18,563 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 916 transitions. [2022-07-12 05:52:18,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 05:52:18,565 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:18,565 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:18,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 05:52:18,566 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:18,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1153160642, now seen corresponding path program 1 times [2022-07-12 05:52:18,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:18,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959981611] [2022-07-12 05:52:18,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:18,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:52:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:52:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:52:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:52:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 05:52:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 05:52:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 05:52:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:52:18,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:18,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959981611] [2022-07-12 05:52:18,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959981611] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:18,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:52:18,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:52:18,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029088480] [2022-07-12 05:52:18,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:18,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:52:18,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:18,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:52:18,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:52:18,894 INFO L87 Difference]: Start difference. First operand 565 states and 916 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:52:23,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:23,089 INFO L93 Difference]: Finished difference Result 1479 states and 2475 transitions. [2022-07-12 05:52:23,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 05:52:23,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2022-07-12 05:52:23,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:23,095 INFO L225 Difference]: With dead ends: 1479 [2022-07-12 05:52:23,095 INFO L226 Difference]: Without dead ends: 930 [2022-07-12 05:52:23,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:52:23,098 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 2115 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2227 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:23,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2227 Valid, 2057 Invalid, 3410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [801 Valid, 2609 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 05:52:23,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2022-07-12 05:52:23,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 570. [2022-07-12 05:52:23,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 436 states have (on average 1.6238532110091743) internal successors, (708), 452 states have internal predecessors, (708), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 05:52:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 921 transitions. [2022-07-12 05:52:23,192 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 921 transitions. Word has length 119 [2022-07-12 05:52:23,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:23,193 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 921 transitions. [2022-07-12 05:52:23,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:52:23,193 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 921 transitions. [2022-07-12 05:52:23,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 05:52:23,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:23,195 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:23,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 05:52:23,196 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:23,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:23,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1294448355, now seen corresponding path program 1 times [2022-07-12 05:52:23,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:23,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357123182] [2022-07-12 05:52:23,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:23,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:52:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:52:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:52:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:52:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 05:52:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 05:52:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 05:52:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:52:23,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:23,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357123182] [2022-07-12 05:52:23,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357123182] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:23,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:52:23,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:52:23,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010762971] [2022-07-12 05:52:23,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:23,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:52:23,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:23,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:52:23,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:52:23,516 INFO L87 Difference]: Start difference. First operand 570 states and 921 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:28,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:28,900 INFO L93 Difference]: Finished difference Result 1481 states and 2474 transitions. [2022-07-12 05:52:28,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:52:28,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2022-07-12 05:52:28,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:28,906 INFO L225 Difference]: With dead ends: 1481 [2022-07-12 05:52:28,906 INFO L226 Difference]: Without dead ends: 903 [2022-07-12 05:52:28,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:52:28,909 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 1106 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 5443 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 3541 SdHoareTripleChecker+Invalid, 5793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 5443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:28,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 3541 Invalid, 5793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 5443 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 05:52:28,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-07-12 05:52:28,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 559. [2022-07-12 05:52:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 425 states have (on average 1.6211764705882352) internal successors, (689), 441 states have internal predecessors, (689), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 05:52:29,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 902 transitions. [2022-07-12 05:52:29,003 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 902 transitions. Word has length 119 [2022-07-12 05:52:29,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:29,004 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 902 transitions. [2022-07-12 05:52:29,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:29,004 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 902 transitions. [2022-07-12 05:52:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-12 05:52:29,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:29,006 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:29,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 05:52:29,007 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:29,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2076595881, now seen corresponding path program 1 times [2022-07-12 05:52:29,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:29,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917378024] [2022-07-12 05:52:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:29,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 05:52:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:52:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:52:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 05:52:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 05:52:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 05:52:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 05:52:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:29,343 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:52:29,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:29,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917378024] [2022-07-12 05:52:29,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917378024] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:29,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:52:29,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:52:29,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949595228] [2022-07-12 05:52:29,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:29,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:52:29,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:29,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:52:29,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:52:29,346 INFO L87 Difference]: Start difference. First operand 559 states and 902 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:52:33,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:33,598 INFO L93 Difference]: Finished difference Result 1458 states and 2434 transitions. [2022-07-12 05:52:33,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:52:33,598 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-07-12 05:52:33,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:33,603 INFO L225 Difference]: With dead ends: 1458 [2022-07-12 05:52:33,603 INFO L226 Difference]: Without dead ends: 915 [2022-07-12 05:52:33,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:52:33,606 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 2061 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2173 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 3370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 2570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:33,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2173 Valid, 2091 Invalid, 3370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [800 Valid, 2570 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 05:52:33,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-07-12 05:52:33,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 565. [2022-07-12 05:52:33,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 431 states have (on average 1.6125290023201857) internal successors, (695), 447 states have internal predecessors, (695), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 05:52:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 908 transitions. [2022-07-12 05:52:33,708 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 908 transitions. Word has length 120 [2022-07-12 05:52:33,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:33,708 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 908 transitions. [2022-07-12 05:52:33,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:52:33,708 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 908 transitions. [2022-07-12 05:52:33,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-12 05:52:33,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:33,711 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:33,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 05:52:33,711 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:33,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:33,712 INFO L85 PathProgramCache]: Analyzing trace with hash -341888597, now seen corresponding path program 1 times [2022-07-12 05:52:33,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:33,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445060121] [2022-07-12 05:52:33,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:33,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:33,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:33,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:33,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:33,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:33,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 05:52:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:52:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:52:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 05:52:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 05:52:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 05:52:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 05:52:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:34,040 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:52:34,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:34,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445060121] [2022-07-12 05:52:34,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445060121] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:34,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:52:34,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:52:34,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315092180] [2022-07-12 05:52:34,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:34,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:52:34,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:34,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:52:34,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:52:34,043 INFO L87 Difference]: Start difference. First operand 565 states and 908 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:39,217 INFO L93 Difference]: Finished difference Result 1461 states and 2435 transitions. [2022-07-12 05:52:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 05:52:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2022-07-12 05:52:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:39,222 INFO L225 Difference]: With dead ends: 1461 [2022-07-12 05:52:39,222 INFO L226 Difference]: Without dead ends: 903 [2022-07-12 05:52:39,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:52:39,226 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 2080 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 5132 mSolverCounterSat, 803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 5935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 5132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:39,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2192 Valid, 3516 Invalid, 5935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 5132 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-07-12 05:52:39,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-07-12 05:52:39,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 559. [2022-07-12 05:52:39,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 425 states have (on average 1.6188235294117648) internal successors, (688), 441 states have internal predecessors, (688), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 05:52:39,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 901 transitions. [2022-07-12 05:52:39,330 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 901 transitions. Word has length 120 [2022-07-12 05:52:39,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:39,331 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 901 transitions. [2022-07-12 05:52:39,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:39,331 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 901 transitions. [2022-07-12 05:52:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-12 05:52:39,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:39,334 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:39,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 05:52:39,334 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:39,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:39,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1733699816, now seen corresponding path program 1 times [2022-07-12 05:52:39,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:39,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795933558] [2022-07-12 05:52:39,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:39,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:52:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:52:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 05:52:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:52:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 05:52:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 05:52:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 05:52:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 05:52:39,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:39,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795933558] [2022-07-12 05:52:39,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795933558] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:52:39,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011906439] [2022-07-12 05:52:39,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:39,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:52:39,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:52:39,649 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) [2022-07-12 05:52:39,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 05:52:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:39,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 05:52:39,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:52:40,031 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:52:40,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:52:40,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011906439] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:40,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:52:40,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-12 05:52:40,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444906458] [2022-07-12 05:52:40,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:40,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:52:40,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:40,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:52:40,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:52:40,034 INFO L87 Difference]: Start difference. First operand 559 states and 901 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:40,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:40,239 INFO L93 Difference]: Finished difference Result 1588 states and 2591 transitions. [2022-07-12 05:52:40,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:52:40,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-07-12 05:52:40,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:40,245 INFO L225 Difference]: With dead ends: 1588 [2022-07-12 05:52:40,245 INFO L226 Difference]: Without dead ends: 1047 [2022-07-12 05:52:40,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:52:40,248 INFO L413 NwaCegarLoop]: 1613 mSDtfsCounter, 828 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:40,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2410 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:52:40,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-07-12 05:52:40,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1032. [2022-07-12 05:52:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 792 states have (on average 1.6313131313131313) internal successors, (1292), 823 states have internal predecessors, (1292), 191 states have call successors, (191), 49 states have call predecessors, (191), 48 states have return successors, (193), 185 states have call predecessors, (193), 188 states have call successors, (193) [2022-07-12 05:52:40,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1676 transitions. [2022-07-12 05:52:40,425 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1676 transitions. Word has length 121 [2022-07-12 05:52:40,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:40,425 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1676 transitions. [2022-07-12 05:52:40,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:40,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1676 transitions. [2022-07-12 05:52:40,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-12 05:52:40,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:40,429 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:40,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 05:52:40,643 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,SelfDestructingSolverStorable11 [2022-07-12 05:52:40,644 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:40,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:40,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1387648681, now seen corresponding path program 1 times [2022-07-12 05:52:40,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:40,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029933347] [2022-07-12 05:52:40,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:40,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:52:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:52:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 05:52:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:52:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 05:52:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 05:52:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 05:52:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 05:52:40,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:40,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029933347] [2022-07-12 05:52:40,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029933347] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:52:40,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118885913] [2022-07-12 05:52:40,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:40,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:52:40,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:52:40,960 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) [2022-07-12 05:52:40,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 05:52:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:41,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 1643 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 05:52:41,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:52:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:52:41,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:52:41,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118885913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:41,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:52:41,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-12 05:52:41,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635270251] [2022-07-12 05:52:41,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:41,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:52:41,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:41,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:52:41,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:52:41,368 INFO L87 Difference]: Start difference. First operand 1032 states and 1676 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:41,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:41,639 INFO L93 Difference]: Finished difference Result 2534 states and 4143 transitions. [2022-07-12 05:52:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:52:41,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2022-07-12 05:52:41,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:41,661 INFO L225 Difference]: With dead ends: 2534 [2022-07-12 05:52:41,661 INFO L226 Difference]: Without dead ends: 1520 [2022-07-12 05:52:41,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:52:41,667 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 828 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:41,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2350 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:52:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2022-07-12 05:52:41,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1472. [2022-07-12 05:52:41,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1132 states have (on average 1.6431095406360423) internal successors, (1860), 1178 states have internal predecessors, (1860), 271 states have call successors, (271), 68 states have call predecessors, (271), 68 states have return successors, (278), 264 states have call predecessors, (278), 268 states have call successors, (278) [2022-07-12 05:52:41,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2409 transitions. [2022-07-12 05:52:41,908 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2409 transitions. Word has length 122 [2022-07-12 05:52:41,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:41,908 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 2409 transitions. [2022-07-12 05:52:41,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:52:41,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2409 transitions. [2022-07-12 05:52:41,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-12 05:52:41,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:41,914 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:41,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-12 05:52:42,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-12 05:52:42,128 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:42,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:42,128 INFO L85 PathProgramCache]: Analyzing trace with hash -158367747, now seen corresponding path program 1 times [2022-07-12 05:52:42,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:42,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654846258] [2022-07-12 05:52:42,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:42,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:52:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:52:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:52:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:52:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:52:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:52:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:52:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 05:52:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:52:42,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:42,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654846258] [2022-07-12 05:52:42,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654846258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:42,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:52:42,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:52:42,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019665272] [2022-07-12 05:52:42,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:42,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:52:42,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:42,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:52:42,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:52:42,464 INFO L87 Difference]: Start difference. First operand 1472 states and 2409 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 05:52:57,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:52:57,464 INFO L93 Difference]: Finished difference Result 7170 states and 13042 transitions. [2022-07-12 05:52:57,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 05:52:57,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2022-07-12 05:52:57,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:52:57,510 INFO L225 Difference]: With dead ends: 7170 [2022-07-12 05:52:57,510 INFO L226 Difference]: Without dead ends: 5716 [2022-07-12 05:52:57,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-07-12 05:52:57,522 INFO L413 NwaCegarLoop]: 1215 mSDtfsCounter, 5064 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 8299 mSolverCounterSat, 2978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5183 SdHoareTripleChecker+Valid, 4148 SdHoareTripleChecker+Invalid, 11277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2978 IncrementalHoareTripleChecker+Valid, 8299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:52:57,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5183 Valid, 4148 Invalid, 11277 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2978 Valid, 8299 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-07-12 05:52:57,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5716 states. [2022-07-12 05:52:58,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5716 to 3547. [2022-07-12 05:52:58,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 2589 states have (on average 1.6164542294322133) internal successors, (4185), 2773 states have internal predecessors, (4185), 789 states have call successors, (789), 130 states have call predecessors, (789), 168 states have return successors, (1249), 787 states have call predecessors, (1249), 785 states have call successors, (1249) [2022-07-12 05:52:58,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 6223 transitions. [2022-07-12 05:52:58,488 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 6223 transitions. Word has length 124 [2022-07-12 05:52:58,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:52:58,488 INFO L495 AbstractCegarLoop]: Abstraction has 3547 states and 6223 transitions. [2022-07-12 05:52:58,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 05:52:58,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 6223 transitions. [2022-07-12 05:52:58,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-12 05:52:58,492 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:52:58,492 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:52:58,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 05:52:58,493 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:52:58,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:52:58,493 INFO L85 PathProgramCache]: Analyzing trace with hash -320440492, now seen corresponding path program 1 times [2022-07-12 05:52:58,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:52:58,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240675180] [2022-07-12 05:52:58,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:52:58,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:52:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:52:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:52:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:52:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:52:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:52:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:52:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 05:52:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 05:52:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:52:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 05:52:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 05:52:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:52:58,802 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:52:58,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:52:58,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240675180] [2022-07-12 05:52:58,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240675180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:52:58,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:52:58,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:52:58,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251918628] [2022-07-12 05:52:58,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:52:58,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:52:58,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:52:58,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:52:58,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:52:58,804 INFO L87 Difference]: Start difference. First operand 3547 states and 6223 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:53:04,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:53:04,005 INFO L93 Difference]: Finished difference Result 8070 states and 14453 transitions. [2022-07-12 05:53:04,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:53:04,006 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 125 [2022-07-12 05:53:04,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:53:04,032 INFO L225 Difference]: With dead ends: 8070 [2022-07-12 05:53:04,032 INFO L226 Difference]: Without dead ends: 4541 [2022-07-12 05:53:04,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:53:04,059 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 1996 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 2573 mSolverCounterSat, 740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 3313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 740 IncrementalHoareTripleChecker+Valid, 2573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:53:04,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 2169 Invalid, 3313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [740 Valid, 2573 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-12 05:53:04,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4541 states. [2022-07-12 05:53:05,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4541 to 3551. [2022-07-12 05:53:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 2592 states have (on average 1.615354938271605) internal successors, (4187), 2776 states have internal predecessors, (4187), 789 states have call successors, (789), 132 states have call predecessors, (789), 169 states have return successors, (1240), 786 states have call predecessors, (1240), 785 states have call successors, (1240) [2022-07-12 05:53:05,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 6216 transitions. [2022-07-12 05:53:05,055 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 6216 transitions. Word has length 125 [2022-07-12 05:53:05,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:53:05,056 INFO L495 AbstractCegarLoop]: Abstraction has 3551 states and 6216 transitions. [2022-07-12 05:53:05,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:53:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 6216 transitions. [2022-07-12 05:53:05,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-12 05:53:05,062 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:53:05,062 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:53:05,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 05:53:05,062 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:53:05,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:53:05,063 INFO L85 PathProgramCache]: Analyzing trace with hash -382889354, now seen corresponding path program 1 times [2022-07-12 05:53:05,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:53:05,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372339942] [2022-07-12 05:53:05,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:53:05,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:53:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:53:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:53:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:53:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:53:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:53:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:53:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:53:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:53:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:53:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:53:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 05:53:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,403 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 05:53:05,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:53:05,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372339942] [2022-07-12 05:53:05,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372339942] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:53:05,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891500647] [2022-07-12 05:53:05,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:53:05,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:53:05,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:53:05,408 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) [2022-07-12 05:53:05,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 05:53:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:05,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:53:05,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:53:05,784 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:53:05,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:53:05,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891500647] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:53:05,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:53:05,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-12 05:53:05,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200483078] [2022-07-12 05:53:05,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:53:05,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:53:05,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:53:05,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:53:05,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:53:05,787 INFO L87 Difference]: Start difference. First operand 3551 states and 6216 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 05:53:07,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:53:07,562 INFO L93 Difference]: Finished difference Result 10363 states and 18341 transitions. [2022-07-12 05:53:07,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:53:07,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2022-07-12 05:53:07,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:53:07,595 INFO L225 Difference]: With dead ends: 10363 [2022-07-12 05:53:07,595 INFO L226 Difference]: Without dead ends: 6831 [2022-07-12 05:53:07,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:53:07,617 INFO L413 NwaCegarLoop]: 1014 mSDtfsCounter, 739 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:53:07,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 1827 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:53:07,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6831 states. [2022-07-12 05:53:09,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6831 to 6794. [2022-07-12 05:53:09,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6794 states, 4934 states have (on average 1.5873530603972437) internal successors, (7832), 5300 states have internal predecessors, (7832), 1526 states have call successors, (1526), 258 states have call predecessors, (1526), 333 states have return successors, (2519), 1523 states have call predecessors, (2519), 1520 states have call successors, (2519) [2022-07-12 05:53:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 11877 transitions. [2022-07-12 05:53:09,287 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 11877 transitions. Word has length 125 [2022-07-12 05:53:09,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:53:09,287 INFO L495 AbstractCegarLoop]: Abstraction has 6794 states and 11877 transitions. [2022-07-12 05:53:09,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 05:53:09,288 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 11877 transitions. [2022-07-12 05:53:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 05:53:09,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:53:09,292 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:53:09,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 05:53:09,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:53:09,493 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:53:09,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:53:09,493 INFO L85 PathProgramCache]: Analyzing trace with hash -87932168, now seen corresponding path program 1 times [2022-07-12 05:53:09,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:53:09,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439380629] [2022-07-12 05:53:09,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:53:09,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:53:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:53:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:53:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:53:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:53:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:53:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:53:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:53:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:53:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:53:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:53:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:53:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:53:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 05:53:09,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:53:09,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439380629] [2022-07-12 05:53:09,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439380629] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:53:09,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337098195] [2022-07-12 05:53:09,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:53:09,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:53:09,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:53:09,864 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) [2022-07-12 05:53:09,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 05:53:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:10,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:53:10,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:53:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-12 05:53:10,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:53:10,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337098195] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:53:10,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:53:10,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 12 [2022-07-12 05:53:10,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420066696] [2022-07-12 05:53:10,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:53:10,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:53:10,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:53:10,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:53:10,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:53:10,181 INFO L87 Difference]: Start difference. First operand 6794 states and 11877 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:53:13,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:53:13,696 INFO L93 Difference]: Finished difference Result 20268 states and 35740 transitions. [2022-07-12 05:53:13,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:53:13,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2022-07-12 05:53:13,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:53:13,759 INFO L225 Difference]: With dead ends: 20268 [2022-07-12 05:53:13,759 INFO L226 Difference]: Without dead ends: 13495 [2022-07-12 05:53:13,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:53:13,795 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 888 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 1899 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:53:13,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 1899 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:53:13,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13495 states. [2022-07-12 05:53:17,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13495 to 13392. [2022-07-12 05:53:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13392 states, 9744 states have (on average 1.5897988505747127) internal successors, (15491), 10456 states have internal predecessors, (15491), 2992 states have call successors, (2992), 498 states have call predecessors, (2992), 655 states have return successors, (5020), 3007 states have call predecessors, (5020), 2982 states have call successors, (5020) [2022-07-12 05:53:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13392 states to 13392 states and 23503 transitions. [2022-07-12 05:53:17,540 INFO L78 Accepts]: Start accepts. Automaton has 13392 states and 23503 transitions. Word has length 127 [2022-07-12 05:53:17,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:53:17,541 INFO L495 AbstractCegarLoop]: Abstraction has 13392 states and 23503 transitions. [2022-07-12 05:53:17,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:53:17,541 INFO L276 IsEmpty]: Start isEmpty. Operand 13392 states and 23503 transitions. [2022-07-12 05:53:17,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 05:53:17,545 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:53:17,546 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:53:17,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 05:53:17,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-12 05:53:17,771 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:53:17,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:53:17,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1099049418, now seen corresponding path program 1 times [2022-07-12 05:53:17,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:53:17,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821301490] [2022-07-12 05:53:17,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:53:17,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:53:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:53:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:53:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:53:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:53:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:53:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:53:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:53:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:53:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:53:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:53:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:53:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:53:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 05:53:18,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:53:18,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821301490] [2022-07-12 05:53:18,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821301490] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:53:18,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981171229] [2022-07-12 05:53:18,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:53:18,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:53:18,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:53:18,110 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) [2022-07-12 05:53:18,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 05:53:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:18,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 05:53:18,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:53:18,510 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:53:18,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:53:18,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981171229] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:53:18,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:53:18,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-07-12 05:53:18,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469304807] [2022-07-12 05:53:18,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:53:18,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:53:18,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:53:18,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:53:18,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:53:18,514 INFO L87 Difference]: Start difference. First operand 13392 states and 23503 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-12 05:53:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:53:23,421 INFO L93 Difference]: Finished difference Result 26911 states and 47845 transitions. [2022-07-12 05:53:23,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:53:23,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 127 [2022-07-12 05:53:23,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:53:23,512 INFO L225 Difference]: With dead ends: 26911 [2022-07-12 05:53:23,512 INFO L226 Difference]: Without dead ends: 13537 [2022-07-12 05:53:23,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:53:23,596 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 930 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 4741 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:53:23,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 4741 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 05:53:23,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13537 states. [2022-07-12 05:53:26,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13537 to 12747. [2022-07-12 05:53:26,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12747 states, 9131 states have (on average 1.5718979301281348) internal successors, (14353), 9842 states have internal predecessors, (14353), 3022 states have call successors, (3022), 454 states have call predecessors, (3022), 593 states have return successors, (5084), 3022 states have call predecessors, (5084), 3012 states have call successors, (5084) [2022-07-12 05:53:27,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12747 states to 12747 states and 22459 transitions. [2022-07-12 05:53:27,130 INFO L78 Accepts]: Start accepts. Automaton has 12747 states and 22459 transitions. Word has length 127 [2022-07-12 05:53:27,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:53:27,130 INFO L495 AbstractCegarLoop]: Abstraction has 12747 states and 22459 transitions. [2022-07-12 05:53:27,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-12 05:53:27,131 INFO L276 IsEmpty]: Start isEmpty. Operand 12747 states and 22459 transitions. [2022-07-12 05:53:27,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-12 05:53:27,135 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:53:27,135 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:53:27,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 05:53:27,361 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,SelfDestructingSolverStorable17 [2022-07-12 05:53:27,361 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:53:27,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:53:27,362 INFO L85 PathProgramCache]: Analyzing trace with hash -2099247410, now seen corresponding path program 1 times [2022-07-12 05:53:27,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:53:27,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50943957] [2022-07-12 05:53:27,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:53:27,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:53:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:53:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:53:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:53:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:53:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:53:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:53:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:53:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:53:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:53:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 05:53:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:53:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:53:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 05:53:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 05:53:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:53:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-12 05:53:27,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:53:27,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50943957] [2022-07-12 05:53:27,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50943957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:53:27,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:53:27,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:53:27,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971821750] [2022-07-12 05:53:27,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:53:27,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:53:27,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:53:27,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:53:27,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:53:27,686 INFO L87 Difference]: Start difference. First operand 12747 states and 22459 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 05:53:59,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:53:59,348 INFO L93 Difference]: Finished difference Result 56346 states and 111903 transitions. [2022-07-12 05:53:59,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 05:53:59,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2022-07-12 05:53:59,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:53:59,692 INFO L225 Difference]: With dead ends: 56346 [2022-07-12 05:53:59,692 INFO L226 Difference]: Without dead ends: 43617 [2022-07-12 05:53:59,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-07-12 05:53:59,806 INFO L413 NwaCegarLoop]: 1234 mSDtfsCounter, 4050 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 8629 mSolverCounterSat, 2565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4169 SdHoareTripleChecker+Valid, 4324 SdHoareTripleChecker+Invalid, 11194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2565 IncrementalHoareTripleChecker+Valid, 8629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:53:59,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4169 Valid, 4324 Invalid, 11194 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2565 Valid, 8629 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2022-07-12 05:53:59,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43617 states. [2022-07-12 05:54:07,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43617 to 24281. [2022-07-12 05:54:07,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24281 states, 17712 states have (on average 1.5669602529358626) internal successors, (27754), 18941 states have internal predecessors, (27754), 5347 states have call successors, (5347), 902 states have call predecessors, (5347), 1221 states have return successors, (10170), 5357 states have call predecessors, (10170), 5329 states have call successors, (10170) [2022-07-12 05:54:07,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24281 states to 24281 states and 43271 transitions. [2022-07-12 05:54:07,535 INFO L78 Accepts]: Start accepts. Automaton has 24281 states and 43271 transitions. Word has length 135 [2022-07-12 05:54:07,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:54:07,536 INFO L495 AbstractCegarLoop]: Abstraction has 24281 states and 43271 transitions. [2022-07-12 05:54:07,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 05:54:07,536 INFO L276 IsEmpty]: Start isEmpty. Operand 24281 states and 43271 transitions. [2022-07-12 05:54:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-12 05:54:07,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:54:07,541 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:54:07,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 05:54:07,541 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:54:07,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:54:07,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1682177621, now seen corresponding path program 1 times [2022-07-12 05:54:07,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:54:07,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487158358] [2022-07-12 05:54:07,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:54:07,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:54:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:54:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:54:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:54:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:54:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:54:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:54:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:54:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:54:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:54:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 05:54:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:54:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 05:54:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:54:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:54:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:54:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:54:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:54:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 05:54:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:07,841 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-12 05:54:07,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:54:07,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487158358] [2022-07-12 05:54:07,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487158358] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:54:07,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:54:07,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:54:07,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83433743] [2022-07-12 05:54:07,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:54:07,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:54:07,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:54:07,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:54:07,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:54:07,845 INFO L87 Difference]: Start difference. First operand 24281 states and 43271 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 05:54:22,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:54:22,076 INFO L93 Difference]: Finished difference Result 54320 states and 102519 transitions. [2022-07-12 05:54:22,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:54:22,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2022-07-12 05:54:22,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:54:22,352 INFO L225 Difference]: With dead ends: 54320 [2022-07-12 05:54:22,352 INFO L226 Difference]: Without dead ends: 30057 [2022-07-12 05:54:22,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:54:22,575 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 1560 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:54:22,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 2114 Invalid, 3145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 05:54:22,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30057 states. [2022-07-12 05:54:30,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30057 to 24361. [2022-07-12 05:54:30,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24361 states, 17784 states have (on average 1.5651147098515519) internal successors, (27834), 18997 states have internal predecessors, (27834), 5347 states have call successors, (5347), 934 states have call predecessors, (5347), 1229 states have return successors, (10130), 5349 states have call predecessors, (10130), 5329 states have call successors, (10130) [2022-07-12 05:54:30,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24361 states to 24361 states and 43311 transitions. [2022-07-12 05:54:30,444 INFO L78 Accepts]: Start accepts. Automaton has 24361 states and 43311 transitions. Word has length 136 [2022-07-12 05:54:30,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:54:30,445 INFO L495 AbstractCegarLoop]: Abstraction has 24361 states and 43311 transitions. [2022-07-12 05:54:30,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 05:54:30,445 INFO L276 IsEmpty]: Start isEmpty. Operand 24361 states and 43311 transitions. [2022-07-12 05:54:30,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-12 05:54:30,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:54:30,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-12 05:54:30,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 05:54:30,450 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:54:30,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:54:30,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1902107534, now seen corresponding path program 1 times [2022-07-12 05:54:30,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:54:30,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504779428] [2022-07-12 05:54:30,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:54:30,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:54:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:54:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:54:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:54:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:54:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:54:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:54:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:54:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:54:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:54:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:54:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 05:54:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:54:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:54:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 05:54:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:54:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:54:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:54:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 05:54:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 05:54:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:54:30,764 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:54:30,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:54:30,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504779428] [2022-07-12 05:54:30,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504779428] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:54:30,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:54:30,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:54:30,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693527371] [2022-07-12 05:54:30,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:54:30,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:54:30,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:54:30,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:54:30,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:54:30,767 INFO L87 Difference]: Start difference. First operand 24361 states and 43311 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 05:55:18,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:55:18,757 INFO L93 Difference]: Finished difference Result 103590 states and 218424 transitions. [2022-07-12 05:55:18,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 05:55:18,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2022-07-12 05:55:18,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:55:19,686 INFO L225 Difference]: With dead ends: 103590 [2022-07-12 05:55:19,687 INFO L226 Difference]: Without dead ends: 79247 [2022-07-12 05:55:19,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-07-12 05:55:19,985 INFO L413 NwaCegarLoop]: 1273 mSDtfsCounter, 5085 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 8376 mSolverCounterSat, 3041 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 4268 SdHoareTripleChecker+Invalid, 11417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3041 IncrementalHoareTripleChecker+Valid, 8376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:55:19,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 4268 Invalid, 11417 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3041 Valid, 8376 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-07-12 05:55:20,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79247 states.