./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product31.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_spec14_product31.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 866b4070887ce539f36e137c6ed6e587ee3f43d9563c34ef0dd3382aa4e2313a --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 05:35:09,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 05:35:09,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 05:35:09,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 05:35:09,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 05:35:09,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 05:35:09,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 05:35:09,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 05:35:09,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 05:35:09,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 05:35:09,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 05:35:09,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 05:35:09,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 05:35:09,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 05:35:09,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 05:35:09,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 05:35:09,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 05:35:09,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 05:35:09,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 05:35:09,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 05:35:09,240 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 05:35:09,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 05:35:09,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 05:35:09,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 05:35:09,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 05:35:09,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 05:35:09,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 05:35:09,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 05:35:09,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 05:35:09,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 05:35:09,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 05:35:09,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 05:35:09,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 05:35:09,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 05:35:09,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 05:35:09,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 05:35:09,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 05:35:09,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 05:35:09,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 05:35:09,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 05:35:09,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 05:35:09,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 05:35:09,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 05:35:09,277 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 05:35:09,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 05:35:09,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 05:35:09,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 05:35:09,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 05:35:09,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 05:35:09,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 05:35:09,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 05:35:09,280 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 05:35:09,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 05:35:09,280 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 05:35:09,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 05:35:09,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 05:35:09,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 05:35:09,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 05:35:09,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 05:35:09,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 05:35:09,282 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 05:35:09,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 05:35:09,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 05:35:09,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 05:35:09,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 05:35:09,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 05:35:09,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 05:35:09,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:35:09,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 05:35:09,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 05:35:09,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 05:35:09,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 05:35:09,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 05:35:09,284 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 05:35:09,284 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 05:35:09,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 05:35:09,285 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 866b4070887ce539f36e137c6ed6e587ee3f43d9563c34ef0dd3382aa4e2313a [2022-07-12 05:35:09,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 05:35:09,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 05:35:09,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 05:35:09,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 05:35:09,551 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 05:35:09,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product31.cil.c [2022-07-12 05:35:09,614 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/122dfae99/cd2d5258b3ca4db9b996f35742f346fe/FLAG0c3acffc5 [2022-07-12 05:35:10,237 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 05:35:10,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product31.cil.c [2022-07-12 05:35:10,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/122dfae99/cd2d5258b3ca4db9b996f35742f346fe/FLAG0c3acffc5 [2022-07-12 05:35:10,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/122dfae99/cd2d5258b3ca4db9b996f35742f346fe [2022-07-12 05:35:10,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 05:35:10,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 05:35:10,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 05:35:10,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 05:35:10,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 05:35:10,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:35:10" (1/1) ... [2022-07-12 05:35:10,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434b647c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:10, skipping insertion in model container [2022-07-12 05:35:10,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:35:10" (1/1) ... [2022-07-12 05:35:10,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 05:35:10,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 05:35:11,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product31.cil.c[71150,71163] [2022-07-12 05:35:11,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:35:11,084 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 05:35:11,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product31.cil.c[71150,71163] [2022-07-12 05:35:11,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:35:11,206 INFO L208 MainTranslator]: Completed translation [2022-07-12 05:35:11,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11 WrapperNode [2022-07-12 05:35:11,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 05:35:11,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 05:35:11,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 05:35:11,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 05:35:11,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (1/1) ... [2022-07-12 05:35:11,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (1/1) ... [2022-07-12 05:35:11,286 INFO L137 Inliner]: procedures = 94, calls = 342, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 898 [2022-07-12 05:35:11,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 05:35:11,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 05:35:11,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 05:35:11,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 05:35:11,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (1/1) ... [2022-07-12 05:35:11,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (1/1) ... [2022-07-12 05:35:11,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (1/1) ... [2022-07-12 05:35:11,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (1/1) ... [2022-07-12 05:35:11,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (1/1) ... [2022-07-12 05:35:11,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (1/1) ... [2022-07-12 05:35:11,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (1/1) ... [2022-07-12 05:35:11,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 05:35:11,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 05:35:11,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 05:35:11,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 05:35:11,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (1/1) ... [2022-07-12 05:35:11,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:35:11,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:11,449 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 05:35:11,474 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 05:35:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 05:35:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-12 05:35:11,491 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-12 05:35:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-12 05:35:11,491 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-12 05:35:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-12 05:35:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-12 05:35:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-12 05:35:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-12 05:35:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-12 05:35:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-12 05:35:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-12 05:35:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-12 05:35:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-07-12 05:35:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-07-12 05:35:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-12 05:35:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-12 05:35:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2022-07-12 05:35:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2022-07-12 05:35:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 05:35:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 05:35:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 05:35:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 05:35:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-12 05:35:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-12 05:35:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-12 05:35:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-12 05:35:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-12 05:35:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-12 05:35:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-12 05:35:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-12 05:35:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-12 05:35:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-12 05:35:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-12 05:35:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-12 05:35:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-12 05:35:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-12 05:35:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-12 05:35:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-12 05:35:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-12 05:35:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-12 05:35:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 05:35:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-07-12 05:35:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-07-12 05:35:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-12 05:35:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-12 05:35:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-12 05:35:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-12 05:35:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-12 05:35:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-12 05:35:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 05:35:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 05:35:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-12 05:35:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-12 05:35:11,675 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 05:35:11,689 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 05:35:12,597 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 05:35:12,610 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 05:35:12,611 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 05:35:12,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:35:12 BoogieIcfgContainer [2022-07-12 05:35:12,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 05:35:12,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 05:35:12,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 05:35:12,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 05:35:12,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 05:35:10" (1/3) ... [2022-07-12 05:35:12,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be4e3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:35:12, skipping insertion in model container [2022-07-12 05:35:12,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:35:11" (2/3) ... [2022-07-12 05:35:12,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be4e3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:35:12, skipping insertion in model container [2022-07-12 05:35:12,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:35:12" (3/3) ... [2022-07-12 05:35:12,634 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product31.cil.c [2022-07-12 05:35:12,648 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 05:35:12,648 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 05:35:12,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 05:35:12,729 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@ffb1447, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7ea8364f [2022-07-12 05:35:12,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 05:35:12,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 568 states, 442 states have (on average 1.667420814479638) internal successors, (737), 458 states have internal predecessors, (737), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2022-07-12 05:35:12,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 05:35:12,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:12,782 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:12,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:12,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:12,790 INFO L85 PathProgramCache]: Analyzing trace with hash -575617612, now seen corresponding path program 1 times [2022-07-12 05:35:12,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:12,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767702175] [2022-07-12 05:35:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:12,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 05:35:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:35:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 05:35:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 05:35:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 05:35:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:13,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:13,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767702175] [2022-07-12 05:35:13,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767702175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:13,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:13,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:35:13,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179703949] [2022-07-12 05:35:13,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:13,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:13,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:13,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:13,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:35:13,405 INFO L87 Difference]: Start difference. First operand has 568 states, 442 states have (on average 1.667420814479638) internal successors, (737), 458 states have internal predecessors, (737), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:17,602 INFO L93 Difference]: Finished difference Result 1333 states and 2226 transitions. [2022-07-12 05:35:17,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:35:17,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2022-07-12 05:35:17,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:17,632 INFO L225 Difference]: With dead ends: 1333 [2022-07-12 05:35:17,632 INFO L226 Difference]: Without dead ends: 761 [2022-07-12 05:35:17,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:35:17,649 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 1418 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:17,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 1784 Invalid, 2522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [439 Valid, 2083 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-12 05:35:17,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-07-12 05:35:17,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 563. [2022-07-12 05:35:17,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 438 states have (on average 1.6575342465753424) internal successors, (726), 453 states have internal predecessors, (726), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-12 05:35:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 923 transitions. [2022-07-12 05:35:17,789 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 923 transitions. Word has length 103 [2022-07-12 05:35:17,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:17,789 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 923 transitions. [2022-07-12 05:35:17,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:17,790 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 923 transitions. [2022-07-12 05:35:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-12 05:35:17,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:17,796 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:17,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 05:35:17,797 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:17,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:17,798 INFO L85 PathProgramCache]: Analyzing trace with hash 807558964, now seen corresponding path program 1 times [2022-07-12 05:35:17,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:17,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345543818] [2022-07-12 05:35:17,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:17,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:17,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:17,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:17,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:35:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 05:35:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:17,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:17,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 05:35:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 05:35:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:35:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 05:35:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 05:35:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:18,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:18,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345543818] [2022-07-12 05:35:18,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345543818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:18,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:18,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:35:18,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421131618] [2022-07-12 05:35:18,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:18,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:18,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:18,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:18,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:35:18,072 INFO L87 Difference]: Start difference. First operand 563 states and 923 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:21,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:21,372 INFO L93 Difference]: Finished difference Result 1307 states and 2153 transitions. [2022-07-12 05:35:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:35:21,373 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2022-07-12 05:35:21,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:21,380 INFO L225 Difference]: With dead ends: 1307 [2022-07-12 05:35:21,381 INFO L226 Difference]: Without dead ends: 761 [2022-07-12 05:35:21,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:35:21,389 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 1386 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:21,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 1766 Invalid, 2521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2086 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 05:35:21,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-07-12 05:35:21,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 563. [2022-07-12 05:35:21,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 438 states have (on average 1.6552511415525115) internal successors, (725), 453 states have internal predecessors, (725), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-12 05:35:21,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 922 transitions. [2022-07-12 05:35:21,458 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 922 transitions. Word has length 104 [2022-07-12 05:35:21,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:21,460 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 922 transitions. [2022-07-12 05:35:21,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:21,460 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 922 transitions. [2022-07-12 05:35:21,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-12 05:35:21,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:21,467 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:21,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 05:35:21,467 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:21,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:21,468 INFO L85 PathProgramCache]: Analyzing trace with hash 679359280, now seen corresponding path program 1 times [2022-07-12 05:35:21,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:21,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120470353] [2022-07-12 05:35:21,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:21,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:35:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 05:35:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:35:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 05:35:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 05:35:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 05:35:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 05:35:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:21,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:21,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120470353] [2022-07-12 05:35:21,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120470353] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:21,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:21,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:35:21,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973229237] [2022-07-12 05:35:21,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:21,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:21,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:21,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:35:21,699 INFO L87 Difference]: Start difference. First operand 563 states and 922 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:24,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:24,993 INFO L93 Difference]: Finished difference Result 1307 states and 2152 transitions. [2022-07-12 05:35:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:35:24,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2022-07-12 05:35:24,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:24,999 INFO L225 Difference]: With dead ends: 1307 [2022-07-12 05:35:24,999 INFO L226 Difference]: Without dead ends: 761 [2022-07-12 05:35:25,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:35:25,004 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 1405 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:25,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 1682 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2083 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 05:35:25,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-07-12 05:35:25,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 563. [2022-07-12 05:35:25,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 438 states have (on average 1.6529680365296804) internal successors, (724), 453 states have internal predecessors, (724), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-12 05:35:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 921 transitions. [2022-07-12 05:35:25,079 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 921 transitions. Word has length 105 [2022-07-12 05:35:25,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:25,081 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 921 transitions. [2022-07-12 05:35:25,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:25,081 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 921 transitions. [2022-07-12 05:35:25,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-12 05:35:25,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:25,088 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:25,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 05:35:25,089 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:25,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:25,089 INFO L85 PathProgramCache]: Analyzing trace with hash 943135792, now seen corresponding path program 1 times [2022-07-12 05:35:25,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:25,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195521747] [2022-07-12 05:35:25,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:25,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 05:35:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 05:35:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 05:35:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:35:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:35:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 05:35:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:35:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:25,289 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:25,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:25,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195521747] [2022-07-12 05:35:25,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195521747] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:25,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:25,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:35:25,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649575650] [2022-07-12 05:35:25,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:25,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:25,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:25,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:35:25,292 INFO L87 Difference]: Start difference. First operand 563 states and 921 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:28,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:28,457 INFO L93 Difference]: Finished difference Result 1307 states and 2151 transitions. [2022-07-12 05:35:28,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:35:28,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2022-07-12 05:35:28,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:28,462 INFO L225 Difference]: With dead ends: 1307 [2022-07-12 05:35:28,462 INFO L226 Difference]: Without dead ends: 761 [2022-07-12 05:35:28,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:35:28,473 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 1387 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 2077 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 2077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:28,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 1735 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 2077 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-12 05:35:28,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-07-12 05:35:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 563. [2022-07-12 05:35:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 438 states have (on average 1.6506849315068493) internal successors, (723), 453 states have internal predecessors, (723), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-12 05:35:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 920 transitions. [2022-07-12 05:35:28,532 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 920 transitions. Word has length 106 [2022-07-12 05:35:28,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:28,532 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 920 transitions. [2022-07-12 05:35:28,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:28,533 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 920 transitions. [2022-07-12 05:35:28,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-12 05:35:28,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:28,536 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:28,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 05:35:28,536 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:28,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:28,537 INFO L85 PathProgramCache]: Analyzing trace with hash 473272492, now seen corresponding path program 1 times [2022-07-12 05:35:28,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:28,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581243580] [2022-07-12 05:35:28,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:28,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 05:35:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 05:35:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:35:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 05:35:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:35:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 05:35:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:35:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:28,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:28,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581243580] [2022-07-12 05:35:28,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581243580] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:28,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:28,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:35:28,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096116920] [2022-07-12 05:35:28,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:28,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:28,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:28,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:28,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:35:28,766 INFO L87 Difference]: Start difference. First operand 563 states and 920 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:31,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:31,866 INFO L93 Difference]: Finished difference Result 1307 states and 2150 transitions. [2022-07-12 05:35:31,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:35:31,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2022-07-12 05:35:31,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:31,871 INFO L225 Difference]: With dead ends: 1307 [2022-07-12 05:35:31,871 INFO L226 Difference]: Without dead ends: 761 [2022-07-12 05:35:31,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:35:31,875 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 1365 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:31,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 1803 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 05:35:31,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-07-12 05:35:31,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 563. [2022-07-12 05:35:31,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 438 states have (on average 1.6484018264840183) internal successors, (722), 453 states have internal predecessors, (722), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-12 05:35:31,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 919 transitions. [2022-07-12 05:35:31,924 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 919 transitions. Word has length 107 [2022-07-12 05:35:31,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:31,924 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 919 transitions. [2022-07-12 05:35:31,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:31,925 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 919 transitions. [2022-07-12 05:35:31,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-12 05:35:31,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:31,927 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:31,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 05:35:31,928 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1264588500, now seen corresponding path program 1 times [2022-07-12 05:35:31,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:31,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615662350] [2022-07-12 05:35:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:31,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 05:35:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:35:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:35:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 05:35:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:35:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 05:35:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:32,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:32,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615662350] [2022-07-12 05:35:32,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615662350] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:32,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:32,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 05:35:32,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902346776] [2022-07-12 05:35:32,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:32,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 05:35:32,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:32,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 05:35:32,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:35:32,206 INFO L87 Difference]: Start difference. First operand 563 states and 919 transitions. Second operand has 11 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:35:36,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:36,889 INFO L93 Difference]: Finished difference Result 1329 states and 2186 transitions. [2022-07-12 05:35:36,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 05:35:36,890 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2022-07-12 05:35:36,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:36,894 INFO L225 Difference]: With dead ends: 1329 [2022-07-12 05:35:36,895 INFO L226 Difference]: Without dead ends: 787 [2022-07-12 05:35:36,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:35:36,899 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 1510 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 6146 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 3463 SdHoareTripleChecker+Invalid, 6606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 6146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:36,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 3463 Invalid, 6606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 6146 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-12 05:35:36,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-07-12 05:35:36,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 576. [2022-07-12 05:35:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 448 states have (on average 1.6450892857142858) internal successors, (737), 465 states have internal predecessors, (737), 100 states have call successors, (100), 26 states have call predecessors, (100), 27 states have return successors, (102), 97 states have call predecessors, (102), 99 states have call successors, (102) [2022-07-12 05:35:36,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 939 transitions. [2022-07-12 05:35:36,958 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 939 transitions. Word has length 108 [2022-07-12 05:35:36,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:36,959 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 939 transitions. [2022-07-12 05:35:36,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:35:36,959 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 939 transitions. [2022-07-12 05:35:36,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-12 05:35:36,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:36,970 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:36,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 05:35:36,970 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:36,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:36,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1278838645, now seen corresponding path program 1 times [2022-07-12 05:35:36,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:36,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98057375] [2022-07-12 05:35:36,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:36,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 05:35:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:35:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:35:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 05:35:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:35:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 05:35:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:37,201 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:37,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:37,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98057375] [2022-07-12 05:35:37,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98057375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:37,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:37,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:35:37,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536100800] [2022-07-12 05:35:37,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:37,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:37,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:37,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:37,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:35:37,204 INFO L87 Difference]: Start difference. First operand 576 states and 939 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:40,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:40,320 INFO L93 Difference]: Finished difference Result 1372 states and 2259 transitions. [2022-07-12 05:35:40,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:35:40,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-07-12 05:35:40,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:40,325 INFO L225 Difference]: With dead ends: 1372 [2022-07-12 05:35:40,325 INFO L226 Difference]: Without dead ends: 821 [2022-07-12 05:35:40,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:35:40,328 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 1439 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 2550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:40,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1712 Invalid, 2550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 05:35:40,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-07-12 05:35:40,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 596. [2022-07-12 05:35:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 467 states have (on average 1.640256959314775) internal successors, (766), 484 states have internal predecessors, (766), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2022-07-12 05:35:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 967 transitions. [2022-07-12 05:35:40,396 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 967 transitions. Word has length 108 [2022-07-12 05:35:40,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:40,397 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 967 transitions. [2022-07-12 05:35:40,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:40,397 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 967 transitions. [2022-07-12 05:35:40,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-12 05:35:40,400 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:40,401 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:40,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 05:35:40,401 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:40,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:40,402 INFO L85 PathProgramCache]: Analyzing trace with hash 207718408, now seen corresponding path program 1 times [2022-07-12 05:35:40,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:40,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069535823] [2022-07-12 05:35:40,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:40,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 05:35:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:35:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:35:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 05:35:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 05:35:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 05:35:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:40,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:40,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069535823] [2022-07-12 05:35:40,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069535823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:40,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:40,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:35:40,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897859832] [2022-07-12 05:35:40,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:40,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:40,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:40,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:40,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:35:40,602 INFO L87 Difference]: Start difference. First operand 596 states and 967 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:43,595 INFO L93 Difference]: Finished difference Result 1347 states and 2194 transitions. [2022-07-12 05:35:43,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:35:43,596 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2022-07-12 05:35:43,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:43,600 INFO L225 Difference]: With dead ends: 1347 [2022-07-12 05:35:43,600 INFO L226 Difference]: Without dead ends: 812 [2022-07-12 05:35:43,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:35:43,603 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 1389 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 2539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:43,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 1755 Invalid, 2539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 05:35:43,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-07-12 05:35:43,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 596. [2022-07-12 05:35:43,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 467 states have (on average 1.6295503211991436) internal successors, (761), 484 states have internal predecessors, (761), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2022-07-12 05:35:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 962 transitions. [2022-07-12 05:35:43,747 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 962 transitions. Word has length 109 [2022-07-12 05:35:43,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:43,748 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 962 transitions. [2022-07-12 05:35:43,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 962 transitions. [2022-07-12 05:35:43,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-12 05:35:43,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:43,753 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:43,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 05:35:43,753 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:43,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:43,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1590070192, now seen corresponding path program 1 times [2022-07-12 05:35:43,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:43,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421390755] [2022-07-12 05:35:43,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:43,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:35:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:35:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:35:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:35:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:35:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:43,972 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:43,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:43,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421390755] [2022-07-12 05:35:43,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421390755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:43,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:43,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:35:43,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100618007] [2022-07-12 05:35:43,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:43,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:43,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:43,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:43,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:35:43,975 INFO L87 Difference]: Start difference. First operand 596 states and 962 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:46,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:46,700 INFO L93 Difference]: Finished difference Result 1347 states and 2189 transitions. [2022-07-12 05:35:46,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:35:46,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2022-07-12 05:35:46,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:46,705 INFO L225 Difference]: With dead ends: 1347 [2022-07-12 05:35:46,705 INFO L226 Difference]: Without dead ends: 812 [2022-07-12 05:35:46,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:35:46,707 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 1392 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:46,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 1735 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 05:35:46,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-07-12 05:35:46,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 596. [2022-07-12 05:35:46,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 467 states have (on average 1.6188436830835118) internal successors, (756), 484 states have internal predecessors, (756), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2022-07-12 05:35:46,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 957 transitions. [2022-07-12 05:35:46,777 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 957 transitions. Word has length 110 [2022-07-12 05:35:46,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:46,777 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 957 transitions. [2022-07-12 05:35:46,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:46,778 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 957 transitions. [2022-07-12 05:35:46,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-12 05:35:46,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:46,781 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:46,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 05:35:46,782 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:46,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:46,782 INFO L85 PathProgramCache]: Analyzing trace with hash -294243923, now seen corresponding path program 1 times [2022-07-12 05:35:46,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:46,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90552480] [2022-07-12 05:35:46,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:46,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:35:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:35:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 05:35:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 05:35:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 05:35:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 05:35:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:46,958 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:46,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:46,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90552480] [2022-07-12 05:35:46,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90552480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:46,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:46,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:35:46,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365320923] [2022-07-12 05:35:46,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:46,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:35:46,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:46,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:35:46,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:35:46,961 INFO L87 Difference]: Start difference. First operand 596 states and 957 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:35:50,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:50,871 INFO L93 Difference]: Finished difference Result 1351 states and 2185 transitions. [2022-07-12 05:35:50,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 05:35:50,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2022-07-12 05:35:50,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:50,875 INFO L225 Difference]: With dead ends: 1351 [2022-07-12 05:35:50,876 INFO L226 Difference]: Without dead ends: 831 [2022-07-12 05:35:50,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:35:50,878 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 1452 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 4488 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 4935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 4488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:50,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 2673 Invalid, 4935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 4488 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-12 05:35:50,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2022-07-12 05:35:50,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 598. [2022-07-12 05:35:50,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 469 states have (on average 1.6140724946695095) internal successors, (757), 486 states have internal predecessors, (757), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2022-07-12 05:35:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 958 transitions. [2022-07-12 05:35:50,930 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 958 transitions. Word has length 111 [2022-07-12 05:35:50,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:50,930 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 958 transitions. [2022-07-12 05:35:50,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:35:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 958 transitions. [2022-07-12 05:35:50,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-12 05:35:50,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:50,934 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:50,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 05:35:50,934 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:50,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:50,935 INFO L85 PathProgramCache]: Analyzing trace with hash -257941363, now seen corresponding path program 1 times [2022-07-12 05:35:50,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:50,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071796748] [2022-07-12 05:35:50,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:50,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:35:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:35:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 05:35:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 05:35:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 05:35:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 05:35:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:51,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:51,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071796748] [2022-07-12 05:35:51,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071796748] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:51,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:51,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:35:51,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140980401] [2022-07-12 05:35:51,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:51,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:51,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:51,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:51,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:35:51,096 INFO L87 Difference]: Start difference. First operand 598 states and 958 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:53,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:53,859 INFO L93 Difference]: Finished difference Result 1351 states and 2184 transitions. [2022-07-12 05:35:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:35:53,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2022-07-12 05:35:53,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:53,864 INFO L225 Difference]: With dead ends: 1351 [2022-07-12 05:35:53,864 INFO L226 Difference]: Without dead ends: 814 [2022-07-12 05:35:53,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:35:53,868 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 1402 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:53,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 1693 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 05:35:53,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-07-12 05:35:53,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 598. [2022-07-12 05:35:53,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 469 states have (on average 1.603411513859275) internal successors, (752), 486 states have internal predecessors, (752), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2022-07-12 05:35:53,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 953 transitions. [2022-07-12 05:35:53,942 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 953 transitions. Word has length 111 [2022-07-12 05:35:53,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:53,943 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 953 transitions. [2022-07-12 05:35:53,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:35:53,943 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 953 transitions. [2022-07-12 05:35:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-12 05:35:53,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:53,947 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:53,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 05:35:53,947 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:53,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:53,948 INFO L85 PathProgramCache]: Analyzing trace with hash 616278963, now seen corresponding path program 1 times [2022-07-12 05:35:53,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:53,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087631245] [2022-07-12 05:35:53,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:53,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:35:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:35:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:35:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 05:35:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 05:35:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 05:35:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:54,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:54,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087631245] [2022-07-12 05:35:54,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087631245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:54,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:54,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:35:54,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948627182] [2022-07-12 05:35:54,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:54,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:35:54,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:54,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:35:54,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:35:54,128 INFO L87 Difference]: Start difference. First operand 598 states and 953 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:35:57,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:57,907 INFO L93 Difference]: Finished difference Result 1376 states and 2212 transitions. [2022-07-12 05:35:57,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 05:35:57,908 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2022-07-12 05:35:57,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:57,911 INFO L225 Difference]: With dead ends: 1376 [2022-07-12 05:35:57,911 INFO L226 Difference]: Without dead ends: 851 [2022-07-12 05:35:57,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:35:57,913 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 1446 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 4377 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 4831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 4377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:57,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 2767 Invalid, 4831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 4377 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 05:35:57,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2022-07-12 05:35:57,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 604. [2022-07-12 05:35:57,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 475 states have (on average 1.5936842105263158) internal successors, (757), 492 states have internal predecessors, (757), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2022-07-12 05:35:57,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 958 transitions. [2022-07-12 05:35:57,980 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 958 transitions. Word has length 112 [2022-07-12 05:35:57,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:57,980 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 958 transitions. [2022-07-12 05:35:57,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:35:57,981 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 958 transitions. [2022-07-12 05:35:57,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-12 05:35:57,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:57,984 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:57,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 05:35:57,984 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:57,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:57,985 INFO L85 PathProgramCache]: Analyzing trace with hash 831998677, now seen corresponding path program 1 times [2022-07-12 05:35:57,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:57,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361110772] [2022-07-12 05:35:57,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:57,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:35:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:35:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:35:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 05:35:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 05:35:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 05:35:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:35:58,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:58,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361110772] [2022-07-12 05:35:58,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361110772] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:58,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:58,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:35:58,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059413661] [2022-07-12 05:35:58,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:58,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:58,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:58,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:58,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:35:58,137 INFO L87 Difference]: Start difference. First operand 604 states and 958 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:36:00,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:00,926 INFO L93 Difference]: Finished difference Result 1366 states and 2190 transitions. [2022-07-12 05:36:00,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:36:00,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2022-07-12 05:36:00,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:00,930 INFO L225 Difference]: With dead ends: 1366 [2022-07-12 05:36:00,931 INFO L226 Difference]: Without dead ends: 823 [2022-07-12 05:36:00,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:36:00,934 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 1400 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:00,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1695 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 05:36:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-07-12 05:36:00,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 604. [2022-07-12 05:36:00,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 475 states have (on average 1.583157894736842) internal successors, (752), 492 states have internal predecessors, (752), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2022-07-12 05:36:00,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 953 transitions. [2022-07-12 05:36:00,999 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 953 transitions. Word has length 112 [2022-07-12 05:36:00,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:00,999 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 953 transitions. [2022-07-12 05:36:00,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:36:01,000 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 953 transitions. [2022-07-12 05:36:01,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-12 05:36:01,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:01,003 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:01,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 05:36:01,004 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:01,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:01,004 INFO L85 PathProgramCache]: Analyzing trace with hash -57625806, now seen corresponding path program 1 times [2022-07-12 05:36:01,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:01,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359103178] [2022-07-12 05:36:01,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:01,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:36:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 05:36:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:36:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:36:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 05:36:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 05:36:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 05:36:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,210 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:36:01,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:01,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359103178] [2022-07-12 05:36:01,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359103178] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:01,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:36:01,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:36:01,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769172606] [2022-07-12 05:36:01,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:01,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:36:01,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:36:01,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:36:01,213 INFO L87 Difference]: Start difference. First operand 604 states and 953 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:36:04,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:04,899 INFO L93 Difference]: Finished difference Result 1388 states and 2213 transitions. [2022-07-12 05:36:04,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 05:36:04,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2022-07-12 05:36:04,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:04,904 INFO L225 Difference]: With dead ends: 1388 [2022-07-12 05:36:04,904 INFO L226 Difference]: Without dead ends: 860 [2022-07-12 05:36:04,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:36:04,907 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 1437 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 4344 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 4798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 4344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:04,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 2724 Invalid, 4798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 4344 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-12 05:36:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-07-12 05:36:04,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 612. [2022-07-12 05:36:04,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 483 states have (on average 1.5714285714285714) internal successors, (759), 500 states have internal predecessors, (759), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2022-07-12 05:36:04,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 960 transitions. [2022-07-12 05:36:04,977 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 960 transitions. Word has length 113 [2022-07-12 05:36:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:04,978 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 960 transitions. [2022-07-12 05:36:04,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:36:04,978 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 960 transitions. [2022-07-12 05:36:04,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-12 05:36:04,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:04,981 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:04,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 05:36:04,982 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:04,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:04,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1490842350, now seen corresponding path program 1 times [2022-07-12 05:36:04,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:04,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839797099] [2022-07-12 05:36:04,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:04,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:36:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 05:36:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:36:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:36:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 05:36:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 05:36:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 05:36:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:36:05,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:05,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839797099] [2022-07-12 05:36:05,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839797099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:05,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:36:05,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:36:05,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500827105] [2022-07-12 05:36:05,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:05,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:36:05,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:05,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:36:05,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:36:05,139 INFO L87 Difference]: Start difference. First operand 612 states and 960 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:36:07,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:07,945 INFO L93 Difference]: Finished difference Result 1422 states and 2247 transitions. [2022-07-12 05:36:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:36:07,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2022-07-12 05:36:07,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:07,949 INFO L225 Difference]: With dead ends: 1422 [2022-07-12 05:36:07,949 INFO L226 Difference]: Without dead ends: 807 [2022-07-12 05:36:07,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:36:07,952 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 1354 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:07,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 1753 Invalid, 2445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 05:36:07,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2022-07-12 05:36:08,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 593. [2022-07-12 05:36:08,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 467 states have (on average 1.576017130620985) internal successors, (736), 482 states have internal predecessors, (736), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-12 05:36:08,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 933 transitions. [2022-07-12 05:36:08,020 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 933 transitions. Word has length 113 [2022-07-12 05:36:08,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:08,020 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 933 transitions. [2022-07-12 05:36:08,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:36:08,020 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 933 transitions. [2022-07-12 05:36:08,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 05:36:08,023 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:08,023 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:08,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 05:36:08,024 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:08,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:08,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1690819672, now seen corresponding path program 1 times [2022-07-12 05:36:08,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:08,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593725873] [2022-07-12 05:36:08,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:08,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:36:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 05:36:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:36:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:36:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 05:36:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 05:36:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 05:36:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:08,197 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:36:08,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:08,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593725873] [2022-07-12 05:36:08,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593725873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:08,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:36:08,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:36:08,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029405253] [2022-07-12 05:36:08,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:08,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:36:08,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:08,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:36:08,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:36:08,201 INFO L87 Difference]: Start difference. First operand 593 states and 933 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:36:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:12,069 INFO L93 Difference]: Finished difference Result 1369 states and 2172 transitions. [2022-07-12 05:36:12,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 05:36:12,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 114 [2022-07-12 05:36:12,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:12,073 INFO L225 Difference]: With dead ends: 1369 [2022-07-12 05:36:12,073 INFO L226 Difference]: Without dead ends: 840 [2022-07-12 05:36:12,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:36:12,075 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 1406 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 4276 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 4723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 4276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:12,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 2741 Invalid, 4723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 4276 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 05:36:12,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2022-07-12 05:36:12,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 603. [2022-07-12 05:36:12,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 477 states have (on average 1.5639412997903563) internal successors, (746), 492 states have internal predecessors, (746), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-12 05:36:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 943 transitions. [2022-07-12 05:36:12,142 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 943 transitions. Word has length 114 [2022-07-12 05:36:12,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:12,143 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 943 transitions. [2022-07-12 05:36:12,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:36:12,143 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 943 transitions. [2022-07-12 05:36:12,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-12 05:36:12,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:12,147 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:12,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 05:36:12,147 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:12,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:12,147 INFO L85 PathProgramCache]: Analyzing trace with hash -975493115, now seen corresponding path program 1 times [2022-07-12 05:36:12,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:12,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377386846] [2022-07-12 05:36:12,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:12,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:36:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 05:36:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:36:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 05:36:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 05:36:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 05:36:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:12,308 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 05:36:12,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:12,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377386846] [2022-07-12 05:36:12,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377386846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:12,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:36:12,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:36:12,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683895881] [2022-07-12 05:36:12,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:12,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:36:12,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:36:12,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:36:12,311 INFO L87 Difference]: Start difference. First operand 603 states and 943 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:36:15,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:15,052 INFO L93 Difference]: Finished difference Result 1365 states and 2160 transitions. [2022-07-12 05:36:15,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:36:15,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2022-07-12 05:36:15,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:15,060 INFO L225 Difference]: With dead ends: 1365 [2022-07-12 05:36:15,060 INFO L226 Difference]: Without dead ends: 810 [2022-07-12 05:36:15,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:36:15,063 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 1430 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:15,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 1694 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 05:36:15,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-07-12 05:36:15,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 603. [2022-07-12 05:36:15,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 477 states have (on average 1.5555555555555556) internal successors, (742), 492 states have internal predecessors, (742), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-12 05:36:15,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 939 transitions. [2022-07-12 05:36:15,134 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 939 transitions. Word has length 115 [2022-07-12 05:36:15,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:15,134 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 939 transitions. [2022-07-12 05:36:15,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 05:36:15,134 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 939 transitions. [2022-07-12 05:36:15,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-12 05:36:15,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:15,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:15,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 05:36:15,138 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:15,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:15,138 INFO L85 PathProgramCache]: Analyzing trace with hash 983081671, now seen corresponding path program 1 times [2022-07-12 05:36:15,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:15,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487788752] [2022-07-12 05:36:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:15,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:36:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 05:36:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:36:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 05:36:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 05:36:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 05:36:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 05:36:15,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:15,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487788752] [2022-07-12 05:36:15,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487788752] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:15,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430911324] [2022-07-12 05:36:15,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:15,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:15,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:15,335 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 05:36:15,388 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 05:36:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:15,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:36:15,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:15,838 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 05:36:15,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:15,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430911324] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:15,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:15,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-07-12 05:36:15,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562775716] [2022-07-12 05:36:15,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:15,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:36:15,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:15,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:36:15,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:36:15,841 INFO L87 Difference]: Start difference. First operand 603 states and 939 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:36:16,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:16,333 INFO L93 Difference]: Finished difference Result 1138 states and 1827 transitions. [2022-07-12 05:36:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:36:16,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2022-07-12 05:36:16,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:16,337 INFO L225 Difference]: With dead ends: 1138 [2022-07-12 05:36:16,337 INFO L226 Difference]: Without dead ends: 611 [2022-07-12 05:36:16,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:36:16,341 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 843 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:16,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 2194 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 05:36:16,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-07-12 05:36:16,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2022-07-12 05:36:16,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 484 states have (on average 1.5578512396694215) internal successors, (754), 499 states have internal predecessors, (754), 99 states have call successors, (99), 28 states have call predecessors, (99), 27 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99) [2022-07-12 05:36:16,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 952 transitions. [2022-07-12 05:36:16,421 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 952 transitions. Word has length 115 [2022-07-12 05:36:16,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:16,421 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 952 transitions. [2022-07-12 05:36:16,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:36:16,421 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 952 transitions. [2022-07-12 05:36:16,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-12 05:36:16,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:16,425 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:16,454 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 05:36:16,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-12 05:36:16,642 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:16,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:16,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1361102837, now seen corresponding path program 1 times [2022-07-12 05:36:16,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:16,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738775206] [2022-07-12 05:36:16,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:16,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 05:36:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 05:36:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:36:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 05:36:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 05:36:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 05:36:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:16,854 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-12 05:36:16,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:16,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738775206] [2022-07-12 05:36:16,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738775206] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:16,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822743506] [2022-07-12 05:36:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:16,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:16,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:16,856 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 05:36:16,884 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 05:36:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:17,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:36:17,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-12 05:36:17,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:17,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822743506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:17,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:17,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-07-12 05:36:17,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493867075] [2022-07-12 05:36:17,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:17,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:36:17,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:17,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:36:17,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:36:17,203 INFO L87 Difference]: Start difference. First operand 611 states and 952 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:36:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:17,646 INFO L93 Difference]: Finished difference Result 1154 states and 1850 transitions. [2022-07-12 05:36:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:36:17,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2022-07-12 05:36:17,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:17,649 INFO L225 Difference]: With dead ends: 1154 [2022-07-12 05:36:17,649 INFO L226 Difference]: Without dead ends: 619 [2022-07-12 05:36:17,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:36:17,653 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 844 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:17,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 2194 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 05:36:17,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-07-12 05:36:17,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2022-07-12 05:36:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 491 states have (on average 1.560081466395112) internal successors, (766), 506 states have internal predecessors, (766), 99 states have call successors, (99), 29 states have call predecessors, (99), 28 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2022-07-12 05:36:17,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 965 transitions. [2022-07-12 05:36:17,725 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 965 transitions. Word has length 118 [2022-07-12 05:36:17,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:17,726 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 965 transitions. [2022-07-12 05:36:17,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:36:17,726 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 965 transitions. [2022-07-12 05:36:17,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-12 05:36:17,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:17,729 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:17,755 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 05:36:17,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:17,944 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:17,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash 557854339, now seen corresponding path program 1 times [2022-07-12 05:36:17,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:17,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760367388] [2022-07-12 05:36:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:17,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:36:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:36:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 05:36:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:36:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 05:36:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,119 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 05:36:18,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:18,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760367388] [2022-07-12 05:36:18,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760367388] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:18,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505220826] [2022-07-12 05:36:18,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:18,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:18,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:18,122 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 05:36:18,159 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 05:36:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:18,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:36:18,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:18,436 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 05:36:18,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:18,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505220826] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:18,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:18,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-07-12 05:36:18,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432664723] [2022-07-12 05:36:18,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:18,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:36:18,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:18,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:36:18,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:36:18,438 INFO L87 Difference]: Start difference. First operand 619 states and 965 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:36:18,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:18,858 INFO L93 Difference]: Finished difference Result 1170 states and 1873 transitions. [2022-07-12 05:36:18,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:36:18,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2022-07-12 05:36:18,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:18,862 INFO L225 Difference]: With dead ends: 1170 [2022-07-12 05:36:18,862 INFO L226 Difference]: Without dead ends: 627 [2022-07-12 05:36:18,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:36:18,865 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 842 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:18,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 2194 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 05:36:18,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-07-12 05:36:18,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 627. [2022-07-12 05:36:18,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 498 states have (on average 1.5622489959839359) internal successors, (778), 513 states have internal predecessors, (778), 99 states have call successors, (99), 30 states have call predecessors, (99), 29 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2022-07-12 05:36:18,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 978 transitions. [2022-07-12 05:36:18,951 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 978 transitions. Word has length 121 [2022-07-12 05:36:18,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:18,951 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 978 transitions. [2022-07-12 05:36:18,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:36:18,951 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 978 transitions. [2022-07-12 05:36:18,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-12 05:36:18,954 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:18,954 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:18,981 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 05:36:19,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:19,168 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:19,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:19,168 INFO L85 PathProgramCache]: Analyzing trace with hash -458123991, now seen corresponding path program 1 times [2022-07-12 05:36:19,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:19,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732568836] [2022-07-12 05:36:19,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:19,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:36:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 05:36:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 05:36:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 05:36:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 05:36:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,332 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-12 05:36:19,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:19,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732568836] [2022-07-12 05:36:19,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732568836] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:19,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748241458] [2022-07-12 05:36:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:19,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:19,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:19,336 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 05:36:19,344 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 05:36:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:19,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:36:19,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:19,692 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-12 05:36:19,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:19,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748241458] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:19,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:19,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-07-12 05:36:19,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538888325] [2022-07-12 05:36:19,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:19,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:36:19,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:19,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:36:19,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:36:19,694 INFO L87 Difference]: Start difference. First operand 627 states and 978 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:36:20,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:20,124 INFO L93 Difference]: Finished difference Result 1186 states and 1896 transitions. [2022-07-12 05:36:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:36:20,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2022-07-12 05:36:20,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:20,127 INFO L225 Difference]: With dead ends: 1186 [2022-07-12 05:36:20,127 INFO L226 Difference]: Without dead ends: 635 [2022-07-12 05:36:20,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:36:20,129 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 819 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:20,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 2194 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 05:36:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-07-12 05:36:20,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-07-12 05:36:20,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 505 states have (on average 1.5643564356435644) internal successors, (790), 520 states have internal predecessors, (790), 99 states have call successors, (99), 31 states have call predecessors, (99), 30 states have return successors, (102), 96 states have call predecessors, (102), 98 states have call successors, (102) [2022-07-12 05:36:20,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 991 transitions. [2022-07-12 05:36:20,202 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 991 transitions. Word has length 124 [2022-07-12 05:36:20,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:20,203 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 991 transitions. [2022-07-12 05:36:20,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:36:20,203 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 991 transitions. [2022-07-12 05:36:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 05:36:20,205 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:20,205 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:20,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-12 05:36:20,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:20,419 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:20,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:20,420 INFO L85 PathProgramCache]: Analyzing trace with hash 698932287, now seen corresponding path program 1 times [2022-07-12 05:36:20,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:20,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977239673] [2022-07-12 05:36:20,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:20,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:36:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 05:36:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 05:36:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 05:36:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,693 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-12 05:36:20,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:20,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977239673] [2022-07-12 05:36:20,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977239673] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:20,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066975601] [2022-07-12 05:36:20,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:20,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:20,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:20,695 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 05:36:20,723 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 05:36:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-12 05:36:20,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 05:36:21,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:21,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066975601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:21,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:21,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-12 05:36:21,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435360204] [2022-07-12 05:36:21,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:21,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:36:21,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:21,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:36:21,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:36:21,082 INFO L87 Difference]: Start difference. First operand 635 states and 991 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:36:21,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:21,634 INFO L93 Difference]: Finished difference Result 1759 states and 2839 transitions. [2022-07-12 05:36:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:36:21,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-07-12 05:36:21,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:21,641 INFO L225 Difference]: With dead ends: 1759 [2022-07-12 05:36:21,641 INFO L226 Difference]: Without dead ends: 1200 [2022-07-12 05:36:21,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:36:21,645 INFO L413 NwaCegarLoop]: 1007 mSDtfsCounter, 816 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:21,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 3634 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 05:36:21,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-07-12 05:36:21,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1192. [2022-07-12 05:36:21,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 940 states have (on average 1.5882978723404255) internal successors, (1493), 971 states have internal predecessors, (1493), 192 states have call successors, (192), 59 states have call predecessors, (192), 59 states have return successors, (218), 187 states have call predecessors, (218), 190 states have call successors, (218) [2022-07-12 05:36:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1903 transitions. [2022-07-12 05:36:21,801 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1903 transitions. Word has length 127 [2022-07-12 05:36:21,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:21,801 INFO L495 AbstractCegarLoop]: Abstraction has 1192 states and 1903 transitions. [2022-07-12 05:36:21,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:36:21,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1903 transitions. [2022-07-12 05:36:21,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-12 05:36:21,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:21,804 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:21,830 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 05:36:22,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-12 05:36:22,020 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:22,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:22,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1019830482, now seen corresponding path program 1 times [2022-07-12 05:36:22,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:22,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818033517] [2022-07-12 05:36:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:22,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:36:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 05:36:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 05:36:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 05:36:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,255 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-12 05:36:22,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:22,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818033517] [2022-07-12 05:36:22,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818033517] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:22,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615448335] [2022-07-12 05:36:22,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:22,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:22,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:22,257 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:22,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 05:36:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:22,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 05:36:22,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:22,510 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 05:36:22,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:22,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615448335] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:22,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:22,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-12 05:36:22,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170061829] [2022-07-12 05:36:22,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:22,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:36:22,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:22,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:36:22,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:36:22,512 INFO L87 Difference]: Start difference. First operand 1192 states and 1903 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:36:22,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:22,744 INFO L93 Difference]: Finished difference Result 2858 states and 4648 transitions. [2022-07-12 05:36:22,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:36:22,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-07-12 05:36:22,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:22,753 INFO L225 Difference]: With dead ends: 2858 [2022-07-12 05:36:22,753 INFO L226 Difference]: Without dead ends: 1743 [2022-07-12 05:36:22,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:36:22,761 INFO L413 NwaCegarLoop]: 1687 mSDtfsCounter, 832 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:22,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 2570 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:36:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2022-07-12 05:36:22,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1192. [2022-07-12 05:36:22,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 940 states have (on average 1.5872340425531914) internal successors, (1492), 971 states have internal predecessors, (1492), 192 states have call successors, (192), 59 states have call predecessors, (192), 59 states have return successors, (218), 187 states have call predecessors, (218), 190 states have call successors, (218) [2022-07-12 05:36:22,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1902 transitions. [2022-07-12 05:36:22,907 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1902 transitions. Word has length 132 [2022-07-12 05:36:22,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:22,907 INFO L495 AbstractCegarLoop]: Abstraction has 1192 states and 1902 transitions. [2022-07-12 05:36:22,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:36:22,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1902 transitions. [2022-07-12 05:36:22,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-12 05:36:22,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:22,910 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:22,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:23,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:23,112 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:23,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:23,113 INFO L85 PathProgramCache]: Analyzing trace with hash -318230608, now seen corresponding path program 1 times [2022-07-12 05:36:23,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:23,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467249594] [2022-07-12 05:36:23,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:23,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:36:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 05:36:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 05:36:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 05:36:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-12 05:36:23,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:23,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467249594] [2022-07-12 05:36:23,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467249594] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:23,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890096704] [2022-07-12 05:36:23,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:23,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:23,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:23,352 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:23,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 05:36:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:23,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 05:36:23,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 05:36:23,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:23,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890096704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:23,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:23,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-12 05:36:23,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104019061] [2022-07-12 05:36:23,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:23,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:36:23,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:23,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:36:23,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:36:23,699 INFO L87 Difference]: Start difference. First operand 1192 states and 1902 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:36:23,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:23,946 INFO L93 Difference]: Finished difference Result 2968 states and 4819 transitions. [2022-07-12 05:36:23,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:36:23,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-07-12 05:36:23,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:23,956 INFO L225 Difference]: With dead ends: 2968 [2022-07-12 05:36:23,956 INFO L226 Difference]: Without dead ends: 1854 [2022-07-12 05:36:23,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-12 05:36:23,961 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 393 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:23,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 3993 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:36:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2022-07-12 05:36:24,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1842. [2022-07-12 05:36:24,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1454 states have (on average 1.5632737276478679) internal successors, (2273), 1489 states have internal predecessors, (2273), 288 states have call successors, (288), 99 states have call predecessors, (288), 99 states have return successors, (365), 279 states have call predecessors, (365), 284 states have call successors, (365) [2022-07-12 05:36:24,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2926 transitions. [2022-07-12 05:36:24,138 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2926 transitions. Word has length 132 [2022-07-12 05:36:24,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:24,138 INFO L495 AbstractCegarLoop]: Abstraction has 1842 states and 2926 transitions. [2022-07-12 05:36:24,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:36:24,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2926 transitions. [2022-07-12 05:36:24,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-12 05:36:24,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:24,142 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:24,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:24,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:24,345 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:24,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:24,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1534384334, now seen corresponding path program 1 times [2022-07-12 05:36:24,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:24,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579388572] [2022-07-12 05:36:24,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:24,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:36:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 05:36:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 05:36:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 05:36:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,580 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-12 05:36:24,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:24,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579388572] [2022-07-12 05:36:24,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579388572] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:24,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24075592] [2022-07-12 05:36:24,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:24,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:24,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:24,582 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:24,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-12 05:36:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:24,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 05:36:24,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 05:36:24,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:24,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24075592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:24,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:24,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2022-07-12 05:36:24,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892290872] [2022-07-12 05:36:24,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:24,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:36:24,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:24,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:36:24,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:36:24,846 INFO L87 Difference]: Start difference. First operand 1842 states and 2926 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:36:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:25,029 INFO L93 Difference]: Finished difference Result 3325 states and 5278 transitions. [2022-07-12 05:36:25,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:36:25,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-07-12 05:36:25,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:25,038 INFO L225 Difference]: With dead ends: 3325 [2022-07-12 05:36:25,038 INFO L226 Difference]: Without dead ends: 1561 [2022-07-12 05:36:25,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:36:25,047 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 583 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:25,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1419 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:36:25,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2022-07-12 05:36:25,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1561. [2022-07-12 05:36:25,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1232 states have (on average 1.5405844155844155) internal successors, (1898), 1259 states have internal predecessors, (1898), 241 states have call successors, (241), 89 states have call predecessors, (241), 87 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-12 05:36:25,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2435 transitions. [2022-07-12 05:36:25,214 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2435 transitions. Word has length 132 [2022-07-12 05:36:25,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:25,215 INFO L495 AbstractCegarLoop]: Abstraction has 1561 states and 2435 transitions. [2022-07-12 05:36:25,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:36:25,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2435 transitions. [2022-07-12 05:36:25,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-12 05:36:25,217 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:25,217 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:25,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-07-12 05:36:25,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-12 05:36:25,418 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:25,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:25,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1099131662, now seen corresponding path program 1 times [2022-07-12 05:36:25,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:25,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004086528] [2022-07-12 05:36:25,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:25,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:36:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:36:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:36:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 05:36:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 05:36:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:36:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 05:36:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 05:36:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-12 05:36:25,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:25,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004086528] [2022-07-12 05:36:25,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004086528] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:25,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141656696] [2022-07-12 05:36:25,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:25,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:25,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:25,751 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:25,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-12 05:36:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:25,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:36:25,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:26,031 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-12 05:36:26,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:26,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141656696] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:26,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:26,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-12 05:36:26,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63431741] [2022-07-12 05:36:26,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:26,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:36:26,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:26,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:36:26,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:36:26,033 INFO L87 Difference]: Start difference. First operand 1561 states and 2435 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:26,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:26,348 INFO L93 Difference]: Finished difference Result 3122 states and 4942 transitions. [2022-07-12 05:36:26,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:36:26,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2022-07-12 05:36:26,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:26,362 INFO L225 Difference]: With dead ends: 3122 [2022-07-12 05:36:26,363 INFO L226 Difference]: Without dead ends: 1639 [2022-07-12 05:36:26,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:36:26,369 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 213 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:26,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2427 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:36:26,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-07-12 05:36:26,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1639. [2022-07-12 05:36:26,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1308 states have (on average 1.562691131498471) internal successors, (2044), 1335 states have internal predecessors, (2044), 241 states have call successors, (241), 91 states have call predecessors, (241), 89 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-12 05:36:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2581 transitions. [2022-07-12 05:36:26,555 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2581 transitions. Word has length 155 [2022-07-12 05:36:26,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:26,555 INFO L495 AbstractCegarLoop]: Abstraction has 1639 states and 2581 transitions. [2022-07-12 05:36:26,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:26,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2581 transitions. [2022-07-12 05:36:26,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-12 05:36:26,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:26,558 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:26,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:26,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-12 05:36:26,759 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:26,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:26,759 INFO L85 PathProgramCache]: Analyzing trace with hash -855921282, now seen corresponding path program 1 times [2022-07-12 05:36:26,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:26,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986240253] [2022-07-12 05:36:26,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:26,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:36:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:36:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 05:36:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 05:36:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:36:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 05:36:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 05:36:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:26,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 05:36:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 05:36:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:27,003 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-07-12 05:36:27,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:27,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986240253] [2022-07-12 05:36:27,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986240253] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:27,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215900178] [2022-07-12 05:36:27,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:27,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:27,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:27,006 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:27,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-12 05:36:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:27,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:36:27,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:27,266 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-12 05:36:27,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:27,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215900178] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:27,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:27,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-12 05:36:27,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740951254] [2022-07-12 05:36:27,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:27,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:36:27,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:27,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:36:27,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:36:27,268 INFO L87 Difference]: Start difference. First operand 1639 states and 2581 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:27,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:27,567 INFO L93 Difference]: Finished difference Result 3278 states and 5232 transitions. [2022-07-12 05:36:27,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:36:27,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2022-07-12 05:36:27,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:27,575 INFO L225 Difference]: With dead ends: 3278 [2022-07-12 05:36:27,576 INFO L226 Difference]: Without dead ends: 1717 [2022-07-12 05:36:27,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:36:27,582 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 211 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:27,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2427 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:36:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2022-07-12 05:36:27,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1717. [2022-07-12 05:36:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1384 states have (on average 1.5823699421965318) internal successors, (2190), 1411 states have internal predecessors, (2190), 241 states have call successors, (241), 93 states have call predecessors, (241), 91 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-12 05:36:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2727 transitions. [2022-07-12 05:36:27,742 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2727 transitions. Word has length 160 [2022-07-12 05:36:27,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:27,743 INFO L495 AbstractCegarLoop]: Abstraction has 1717 states and 2727 transitions. [2022-07-12 05:36:27,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2727 transitions. [2022-07-12 05:36:27,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-12 05:36:27,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:27,746 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:27,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:27,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-12 05:36:27,947 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:27,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:27,947 INFO L85 PathProgramCache]: Analyzing trace with hash -846370002, now seen corresponding path program 1 times [2022-07-12 05:36:27,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:27,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436345363] [2022-07-12 05:36:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:27,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:36:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:36:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 05:36:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 05:36:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:36:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:36:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 05:36:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 05:36:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-12 05:36:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,173 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-07-12 05:36:28,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:28,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436345363] [2022-07-12 05:36:28,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436345363] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:28,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835580446] [2022-07-12 05:36:28,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:28,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:28,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:28,175 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:28,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-12 05:36:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:28,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:36:28,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:28,391 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 05:36:28,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:28,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835580446] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:28,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:28,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-12 05:36:28,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469125125] [2022-07-12 05:36:28,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:28,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:36:28,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:28,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:36:28,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:36:28,394 INFO L87 Difference]: Start difference. First operand 1717 states and 2727 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:28,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:28,627 INFO L93 Difference]: Finished difference Result 3434 states and 5522 transitions. [2022-07-12 05:36:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:36:28,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2022-07-12 05:36:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:28,637 INFO L225 Difference]: With dead ends: 3434 [2022-07-12 05:36:28,637 INFO L226 Difference]: Without dead ends: 1795 [2022-07-12 05:36:28,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:36:28,645 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 209 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:28,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2427 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:36:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2022-07-12 05:36:28,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1795. [2022-07-12 05:36:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1460 states have (on average 1.6) internal successors, (2336), 1487 states have internal predecessors, (2336), 241 states have call successors, (241), 95 states have call predecessors, (241), 93 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-12 05:36:28,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2873 transitions. [2022-07-12 05:36:28,849 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2873 transitions. Word has length 164 [2022-07-12 05:36:28,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:28,850 INFO L495 AbstractCegarLoop]: Abstraction has 1795 states and 2873 transitions. [2022-07-12 05:36:28,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:28,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2873 transitions. [2022-07-12 05:36:28,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-12 05:36:28,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:28,854 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:28,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:29,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-12 05:36:29,070 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:29,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:29,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1660278638, now seen corresponding path program 1 times [2022-07-12 05:36:29,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:29,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27373438] [2022-07-12 05:36:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:29,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:36:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:36:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 05:36:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 05:36:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 05:36:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 05:36:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 05:36:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 05:36:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 05:36:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-12 05:36:29,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:29,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27373438] [2022-07-12 05:36:29,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27373438] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:29,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804259504] [2022-07-12 05:36:29,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:29,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:29,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:29,319 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:29,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-12 05:36:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:36:29,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:29,565 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-12 05:36:29,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:29,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804259504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:29,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:29,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-12 05:36:29,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673490544] [2022-07-12 05:36:29,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:29,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:36:29,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:29,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:36:29,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:36:29,568 INFO L87 Difference]: Start difference. First operand 1795 states and 2873 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:29,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:29,818 INFO L93 Difference]: Finished difference Result 3590 states and 5812 transitions. [2022-07-12 05:36:29,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:36:29,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2022-07-12 05:36:29,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:29,825 INFO L225 Difference]: With dead ends: 3590 [2022-07-12 05:36:29,825 INFO L226 Difference]: Without dead ends: 1873 [2022-07-12 05:36:29,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:36:29,831 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 207 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:29,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2427 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:36:29,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2022-07-12 05:36:29,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1873. [2022-07-12 05:36:29,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1873 states, 1536 states have (on average 1.6158854166666667) internal successors, (2482), 1563 states have internal predecessors, (2482), 241 states have call successors, (241), 97 states have call predecessors, (241), 95 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-12 05:36:29,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1873 states to 1873 states and 3019 transitions. [2022-07-12 05:36:29,963 INFO L78 Accepts]: Start accepts. Automaton has 1873 states and 3019 transitions. Word has length 167 [2022-07-12 05:36:29,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:29,963 INFO L495 AbstractCegarLoop]: Abstraction has 1873 states and 3019 transitions. [2022-07-12 05:36:29,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:29,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 3019 transitions. [2022-07-12 05:36:29,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-12 05:36:29,967 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:29,967 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:29,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-12 05:36:30,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-12 05:36:30,168 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:30,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:30,168 INFO L85 PathProgramCache]: Analyzing trace with hash -847536130, now seen corresponding path program 1 times [2022-07-12 05:36:30,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:30,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111985099] [2022-07-12 05:36:30,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:30,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:36:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:36:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 05:36:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 05:36:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 05:36:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 05:36:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 05:36:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 05:36:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 05:36:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,425 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-07-12 05:36:30,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:30,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111985099] [2022-07-12 05:36:30,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111985099] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:30,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173275688] [2022-07-12 05:36:30,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:30,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:30,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:30,427 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:30,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-12 05:36:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:30,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1350 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:36:30,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:30,681 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-07-12 05:36:30,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:30,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173275688] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:30,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:30,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-12 05:36:30,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852775070] [2022-07-12 05:36:30,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:30,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:36:30,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:30,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:36:30,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:36:30,684 INFO L87 Difference]: Start difference. First operand 1873 states and 3019 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:30,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:30,987 INFO L93 Difference]: Finished difference Result 3746 states and 6102 transitions. [2022-07-12 05:36:30,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:36:30,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-07-12 05:36:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:30,995 INFO L225 Difference]: With dead ends: 3746 [2022-07-12 05:36:30,996 INFO L226 Difference]: Without dead ends: 1951 [2022-07-12 05:36:31,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:36:31,023 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 205 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:31,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2427 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:36:31,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2022-07-12 05:36:31,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1951. [2022-07-12 05:36:31,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1612 states have (on average 1.630272952853598) internal successors, (2628), 1639 states have internal predecessors, (2628), 241 states have call successors, (241), 99 states have call predecessors, (241), 97 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-12 05:36:31,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 3165 transitions. [2022-07-12 05:36:31,225 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 3165 transitions. Word has length 169 [2022-07-12 05:36:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:31,226 INFO L495 AbstractCegarLoop]: Abstraction has 1951 states and 3165 transitions. [2022-07-12 05:36:31,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 3165 transitions. [2022-07-12 05:36:31,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-12 05:36:31,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:31,231 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:31,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:31,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:31,451 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:31,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:31,452 INFO L85 PathProgramCache]: Analyzing trace with hash 297204973, now seen corresponding path program 1 times [2022-07-12 05:36:31,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:31,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478739016] [2022-07-12 05:36:31,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:31,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:36:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:36:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 05:36:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 05:36:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 05:36:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 05:36:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 05:36:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 05:36:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 05:36:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-12 05:36:31,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:31,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478739016] [2022-07-12 05:36:31,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478739016] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:31,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106825091] [2022-07-12 05:36:31,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:31,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:31,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:31,711 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:31,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-12 05:36:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:31,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 05:36:31,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:31,985 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-07-12 05:36:31,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:31,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106825091] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:31,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:31,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-12 05:36:31,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091853901] [2022-07-12 05:36:31,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:31,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:36:31,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:31,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:36:31,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:36:31,988 INFO L87 Difference]: Start difference. First operand 1951 states and 3165 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:32,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:32,215 INFO L93 Difference]: Finished difference Result 3886 states and 6378 transitions. [2022-07-12 05:36:32,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:36:32,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-07-12 05:36:32,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:32,236 INFO L225 Difference]: With dead ends: 3886 [2022-07-12 05:36:32,236 INFO L226 Difference]: Without dead ends: 2013 [2022-07-12 05:36:32,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:36:32,244 INFO L413 NwaCegarLoop]: 897 mSDtfsCounter, 69 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:32,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2661 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:36:32,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2022-07-12 05:36:32,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1959. [2022-07-12 05:36:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1959 states, 1620 states have (on average 1.6271604938271604) internal successors, (2636), 1647 states have internal predecessors, (2636), 241 states have call successors, (241), 99 states have call predecessors, (241), 97 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-12 05:36:32,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3173 transitions. [2022-07-12 05:36:32,472 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3173 transitions. Word has length 169 [2022-07-12 05:36:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:32,472 INFO L495 AbstractCegarLoop]: Abstraction has 1959 states and 3173 transitions. [2022-07-12 05:36:32,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:36:32,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3173 transitions. [2022-07-12 05:36:32,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-12 05:36:32,477 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:32,478 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:32,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:32,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:32,691 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:32,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:32,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2102386498, now seen corresponding path program 1 times [2022-07-12 05:36:32,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:32,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240750743] [2022-07-12 05:36:32,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:32,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:36:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:36:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:36:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 05:36:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 05:36:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 05:36:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 05:36:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 05:36:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:32,948 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-07-12 05:36:32,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:32,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240750743] [2022-07-12 05:36:32,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240750743] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:32,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115715576] [2022-07-12 05:36:32,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:32,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:32,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:32,952 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:32,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-12 05:36:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:33,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-12 05:36:33,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-12 05:36:33,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:33,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115715576] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:33,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:33,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2022-07-12 05:36:33,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580905996] [2022-07-12 05:36:33,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:33,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:36:33,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:33,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:36:33,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:36:33,440 INFO L87 Difference]: Start difference. First operand 1959 states and 3173 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 05:36:36,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:36,066 INFO L93 Difference]: Finished difference Result 6026 states and 9974 transitions. [2022-07-12 05:36:36,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 05:36:36,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 177 [2022-07-12 05:36:36,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:36,089 INFO L225 Difference]: With dead ends: 6026 [2022-07-12 05:36:36,089 INFO L226 Difference]: Without dead ends: 3773 [2022-07-12 05:36:36,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2022-07-12 05:36:36,101 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 1992 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 4291 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2097 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 4805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 4291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:36,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2097 Valid, 2792 Invalid, 4805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 4291 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 05:36:36,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2022-07-12 05:36:36,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3693. [2022-07-12 05:36:36,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 2996 states have (on average 1.6438584779706276) internal successors, (4925), 3076 states have internal predecessors, (4925), 499 states have call successors, (499), 179 states have call predecessors, (499), 197 states have return successors, (641), 495 states have call predecessors, (641), 495 states have call successors, (641) [2022-07-12 05:36:36,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6065 transitions. [2022-07-12 05:36:36,470 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6065 transitions. Word has length 177 [2022-07-12 05:36:36,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:36,470 INFO L495 AbstractCegarLoop]: Abstraction has 3693 states and 6065 transitions. [2022-07-12 05:36:36,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 05:36:36,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6065 transitions. [2022-07-12 05:36:36,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-12 05:36:36,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:36,480 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:36,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:36,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:36,708 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:36,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:36,709 INFO L85 PathProgramCache]: Analyzing trace with hash 821416622, now seen corresponding path program 1 times [2022-07-12 05:36:36,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:36,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297608548] [2022-07-12 05:36:36,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:36,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:36:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:36:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:36:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 05:36:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 05:36:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 05:36:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 05:36:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 05:36:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:36,881 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-07-12 05:36:36,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:36,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297608548] [2022-07-12 05:36:36,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297608548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:36,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:36:36,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:36:36,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176521070] [2022-07-12 05:36:36,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:36,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:36:36,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:36,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:36:36,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:36:36,884 INFO L87 Difference]: Start difference. First operand 3693 states and 6065 transitions. Second operand has 9 states, 8 states have (on average 13.75) internal successors, (110), 6 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 05:36:40,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:40,687 INFO L93 Difference]: Finished difference Result 8258 states and 13736 transitions. [2022-07-12 05:36:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 05:36:40,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.75) internal successors, (110), 6 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 177 [2022-07-12 05:36:40,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:40,710 INFO L225 Difference]: With dead ends: 8258 [2022-07-12 05:36:40,710 INFO L226 Difference]: Without dead ends: 4579 [2022-07-12 05:36:40,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:36:40,723 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 807 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 3551 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 3735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 3551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:40,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 3267 Invalid, 3735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 3551 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-12 05:36:40,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4579 states. [2022-07-12 05:36:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4579 to 3707. [2022-07-12 05:36:41,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3707 states, 3010 states have (on average 1.6332225913621263) internal successors, (4916), 3090 states have internal predecessors, (4916), 499 states have call successors, (499), 179 states have call predecessors, (499), 197 states have return successors, (641), 495 states have call predecessors, (641), 495 states have call successors, (641) [2022-07-12 05:36:41,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 6056 transitions. [2022-07-12 05:36:41,121 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 6056 transitions. Word has length 177 [2022-07-12 05:36:41,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:41,122 INFO L495 AbstractCegarLoop]: Abstraction has 3707 states and 6056 transitions. [2022-07-12 05:36:41,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.75) internal successors, (110), 6 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 05:36:41,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 6056 transitions. [2022-07-12 05:36:41,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 05:36:41,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:41,130 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:41,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-12 05:36:41,131 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:41,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:41,131 INFO L85 PathProgramCache]: Analyzing trace with hash -568017574, now seen corresponding path program 1 times [2022-07-12 05:36:41,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:41,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719924102] [2022-07-12 05:36:41,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:41,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:36:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 05:36:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:36:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 05:36:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 05:36:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 05:36:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 05:36:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 05:36:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 05:36:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 05:36:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 05:36:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-07-12 05:36:41,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:41,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719924102] [2022-07-12 05:36:41,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719924102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:41,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:36:41,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:36:41,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726297873] [2022-07-12 05:36:41,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:41,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:36:41,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:41,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:36:41,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:36:41,320 INFO L87 Difference]: Start difference. First operand 3707 states and 6056 transitions. Second operand has 9 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 05:36:45,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:45,016 INFO L93 Difference]: Finished difference Result 7921 states and 13243 transitions. [2022-07-12 05:36:45,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 05:36:45,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 183 [2022-07-12 05:36:45,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:45,031 INFO L225 Difference]: With dead ends: 7921 [2022-07-12 05:36:45,031 INFO L226 Difference]: Without dead ends: 4113 [2022-07-12 05:36:45,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:36:45,044 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 1453 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 3437 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 3437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:45,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1565 Valid, 3370 Invalid, 3811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 3437 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 05:36:45,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4113 states. [2022-07-12 05:36:45,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4113 to 3320. [2022-07-12 05:36:45,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 2723 states have (on average 1.6742563349247155) internal successors, (4559), 2790 states have internal predecessors, (4559), 419 states have call successors, (419), 167 states have call predecessors, (419), 177 states have return successors, (511), 410 states have call predecessors, (511), 415 states have call successors, (511) [2022-07-12 05:36:45,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 5489 transitions. [2022-07-12 05:36:45,409 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 5489 transitions. Word has length 183 [2022-07-12 05:36:45,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:45,410 INFO L495 AbstractCegarLoop]: Abstraction has 3320 states and 5489 transitions. [2022-07-12 05:36:45,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 05:36:45,410 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 5489 transitions. [2022-07-12 05:36:45,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2022-07-12 05:36:45,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:45,423 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:45,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-12 05:36:45,423 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:45,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:45,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1832595213, now seen corresponding path program 1 times [2022-07-12 05:36:45,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:45,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611933301] [2022-07-12 05:36:45,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:45,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:36:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:36:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:36:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:36:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 05:36:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:36:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:36:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:36:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 05:36:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 05:36:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:36:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:36:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-07-12 05:36:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-12 05:36:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-12 05:36:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:36:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-12 05:36:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-07-12 05:36:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-12 05:36:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-12 05:36:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-07-12 05:36:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-12 05:36:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-07-12 05:36:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-07-12 05:36:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-12 05:36:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:45,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 37 proven. 136 refuted. 0 times theorem prover too weak. 926 trivial. 0 not checked. [2022-07-12 05:36:45,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:45,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611933301] [2022-07-12 05:36:45,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611933301] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:45,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143574312] [2022-07-12 05:36:45,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:45,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:45,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:45,991 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:45,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-12 05:36:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 3234 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-12 05:36:46,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:46,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 371 proven. 50 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-07-12 05:36:46,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 05:36:47,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 53 proven. 101 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-07-12 05:36:47,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143574312] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 05:36:47,701 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 05:36:47,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 14] total 34 [2022-07-12 05:36:47,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870490313] [2022-07-12 05:36:47,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 05:36:47,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-07-12 05:36:47,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:47,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-07-12 05:36:47,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 05:36:47,716 INFO L87 Difference]: Start difference. First operand 3320 states and 5489 transitions. Second operand has 34 states, 32 states have (on average 12.09375) internal successors, (387), 25 states have internal predecessors, (387), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91)