./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_product24.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 d9a9e332bba43f0e6d965514fc764881b170e0a0500d860d4fcce12986d98914 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 04:19:01,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 04:19:01,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 04:19:01,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 04:19:01,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 04:19:01,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 04:19:01,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 04:19:01,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 04:19:01,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 04:19:01,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 04:19:01,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 04:19:01,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 04:19:01,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 04:19:01,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 04:19:01,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 04:19:01,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 04:19:01,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 04:19:01,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 04:19:01,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 04:19:01,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 04:19:01,362 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 04:19:01,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 04:19:01,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 04:19:01,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 04:19:01,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 04:19:01,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 04:19:01,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 04:19:01,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 04:19:01,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 04:19:01,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 04:19:01,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 04:19:01,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 04:19:01,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 04:19:01,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 04:19:01,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 04:19:01,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 04:19:01,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 04:19:01,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 04:19:01,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 04:19:01,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 04:19:01,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 04:19:01,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 04:19:01,389 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 04:19:01,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 04:19:01,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 04:19:01,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 04:19:01,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 04:19:01,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 04:19:01,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 04:19:01,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 04:19:01,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 04:19:01,432 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 04:19:01,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 04:19:01,433 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 04:19:01,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 04:19:01,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 04:19:01,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 04:19:01,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 04:19:01,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 04:19:01,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 04:19:01,435 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 04:19:01,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 04:19:01,435 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 04:19:01,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 04:19:01,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 04:19:01,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 04:19:01,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 04:19:01,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:19:01,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 04:19:01,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 04:19:01,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 04:19:01,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 04:19:01,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 04:19:01,438 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 04:19:01,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 04:19:01,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 04:19:01,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9a9e332bba43f0e6d965514fc764881b170e0a0500d860d4fcce12986d98914 [2022-07-21 04:19:01,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 04:19:01,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 04:19:01,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 04:19:01,734 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 04:19:01,735 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 04:19:01,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c [2022-07-21 04:19:01,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/296bea984/a82d6a10287c4294b0dbef33e546b089/FLAG28b5701f5 [2022-07-21 04:19:02,416 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 04:19:02,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c [2022-07-21 04:19:02,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/296bea984/a82d6a10287c4294b0dbef33e546b089/FLAG28b5701f5 [2022-07-21 04:19:02,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/296bea984/a82d6a10287c4294b0dbef33e546b089 [2022-07-21 04:19:02,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 04:19:02,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 04:19:02,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 04:19:02,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 04:19:02,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 04:19:02,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:19:02" (1/1) ... [2022-07-21 04:19:02,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@515cce44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:02, skipping insertion in model container [2022-07-21 04:19:02,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:19:02" (1/1) ... [2022-07-21 04:19:02,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 04:19:02,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 04:19:03,244 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_product24.cil.c[71679,71692] [2022-07-21 04:19:03,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:19:03,260 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 04:19:03,339 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_product24.cil.c[71679,71692] [2022-07-21 04:19:03,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:19:03,363 INFO L208 MainTranslator]: Completed translation [2022-07-21 04:19:03,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03 WrapperNode [2022-07-21 04:19:03,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 04:19:03,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 04:19:03,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 04:19:03,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 04:19:03,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (1/1) ... [2022-07-21 04:19:03,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (1/1) ... [2022-07-21 04:19:03,465 INFO L137 Inliner]: procedures = 95, calls = 346, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 863 [2022-07-21 04:19:03,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 04:19:03,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 04:19:03,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 04:19:03,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 04:19:03,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (1/1) ... [2022-07-21 04:19:03,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (1/1) ... [2022-07-21 04:19:03,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (1/1) ... [2022-07-21 04:19:03,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (1/1) ... [2022-07-21 04:19:03,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (1/1) ... [2022-07-21 04:19:03,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (1/1) ... [2022-07-21 04:19:03,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (1/1) ... [2022-07-21 04:19:03,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 04:19:03,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 04:19:03,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 04:19:03,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 04:19:03,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (1/1) ... [2022-07-21 04:19:03,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:19:03,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:19:03,608 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) [2022-07-21 04:19:03,637 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 [2022-07-21 04:19:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 04:19:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-21 04:19:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-21 04:19:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-21 04:19:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-21 04:19:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-21 04:19:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-21 04:19:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-21 04:19:03,654 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-21 04:19:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-21 04:19:03,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-21 04:19:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-21 04:19:03,655 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-21 04:19:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-07-21 04:19:03,655 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-07-21 04:19:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-21 04:19:03,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-21 04:19:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 04:19:03,656 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 04:19:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 04:19:03,656 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 04:19:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-07-21 04:19:03,656 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-07-21 04:19:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-21 04:19:03,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-21 04:19:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-21 04:19:03,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-21 04:19:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-21 04:19:03,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-21 04:19:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-21 04:19:03,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-21 04:19:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-21 04:19:03,658 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-21 04:19:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-21 04:19:03,659 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-21 04:19:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-21 04:19:03,659 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-21 04:19:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-21 04:19:03,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-21 04:19:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-21 04:19:03,659 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-21 04:19:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 04:19:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-07-21 04:19:03,660 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-07-21 04:19:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-21 04:19:03,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-21 04:19:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-21 04:19:03,661 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-21 04:19:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-21 04:19:03,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-21 04:19:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2022-07-21 04:19:03,661 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2022-07-21 04:19:03,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 04:19:03,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 04:19:03,663 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-21 04:19:03,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-21 04:19:03,663 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2022-07-21 04:19:03,664 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2022-07-21 04:19:03,866 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 04:19:03,868 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 04:19:04,716 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 04:19:04,732 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 04:19:04,732 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 04:19:04,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:19:04 BoogieIcfgContainer [2022-07-21 04:19:04,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 04:19:04,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 04:19:04,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 04:19:04,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 04:19:04,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:19:02" (1/3) ... [2022-07-21 04:19:04,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5986f42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:19:04, skipping insertion in model container [2022-07-21 04:19:04,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:03" (2/3) ... [2022-07-21 04:19:04,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5986f42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:19:04, skipping insertion in model container [2022-07-21 04:19:04,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:19:04" (3/3) ... [2022-07-21 04:19:04,743 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product24.cil.c [2022-07-21 04:19:04,755 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 04:19:04,755 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 04:19:04,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 04:19:04,833 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@6244c95f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5f7aa02d [2022-07-21 04:19:04,833 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 04:19:04,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 572 states, 440 states have (on average 1.6590909090909092) internal successors, (730), 458 states have internal predecessors, (730), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-21 04:19:04,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 04:19:04,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:04,855 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:04,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:04,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:04,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1178526646, now seen corresponding path program 1 times [2022-07-21 04:19:04,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:04,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774631964] [2022-07-21 04:19:04,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:04,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:05,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:05,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:05,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:05,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 04:19:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:05,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:19:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:05,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:05,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 04:19:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:05,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 04:19:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:05,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:05,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774631964] [2022-07-21 04:19:05,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774631964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:05,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:05,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:05,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468355246] [2022-07-21 04:19:05,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:05,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:05,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:05,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:05,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:05,433 INFO L87 Difference]: Start difference. First operand has 572 states, 440 states have (on average 1.6590909090909092) internal successors, (730), 458 states have internal predecessors, (730), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:08,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:08,537 INFO L93 Difference]: Finished difference Result 1260 states and 2089 transitions. [2022-07-21 04:19:08,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:19:08,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2022-07-21 04:19:08,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:08,571 INFO L225 Difference]: With dead ends: 1260 [2022-07-21 04:19:08,571 INFO L226 Difference]: Without dead ends: 688 [2022-07-21 04:19:08,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 04:19:08,584 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 657 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:08,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 2003 Invalid, 1516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [139 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 04:19:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-21 04:19:08,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 567. [2022-07-21 04:19:08,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.6490825688073394) internal successors, (719), 453 states have internal predecessors, (719), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 924 transitions. [2022-07-21 04:19:08,729 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 924 transitions. Word has length 63 [2022-07-21 04:19:08,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:08,731 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 924 transitions. [2022-07-21 04:19:08,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:08,732 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 924 transitions. [2022-07-21 04:19:08,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-21 04:19:08,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:08,741 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:08,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 04:19:08,742 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:08,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:08,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1866360424, now seen corresponding path program 1 times [2022-07-21 04:19:08,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:08,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877245403] [2022-07-21 04:19:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:08,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:08,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:08,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:19:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:08,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:19:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:08,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 04:19:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:08,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:08,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 04:19:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:08,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:19:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:08,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:08,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:08,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877245403] [2022-07-21 04:19:08,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877245403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:08,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:08,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:08,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413838133] [2022-07-21 04:19:08,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:08,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:08,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:08,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:08,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:08,948 INFO L87 Difference]: Start difference. First operand 567 states and 924 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:11,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:11,535 INFO L93 Difference]: Finished difference Result 1238 states and 2033 transitions. [2022-07-21 04:19:11,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:19:11,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2022-07-21 04:19:11,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:11,542 INFO L225 Difference]: With dead ends: 1238 [2022-07-21 04:19:11,542 INFO L226 Difference]: Without dead ends: 688 [2022-07-21 04:19:11,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:19:11,546 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 649 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:11,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 1961 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-21 04:19:11,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-21 04:19:11,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 567. [2022-07-21 04:19:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.646788990825688) internal successors, (718), 453 states have internal predecessors, (718), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 923 transitions. [2022-07-21 04:19:11,594 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 923 transitions. Word has length 64 [2022-07-21 04:19:11,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:11,595 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 923 transitions. [2022-07-21 04:19:11,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:11,595 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 923 transitions. [2022-07-21 04:19:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 04:19:11,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:11,597 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:11,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 04:19:11,598 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:11,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:11,598 INFO L85 PathProgramCache]: Analyzing trace with hash 496083826, now seen corresponding path program 1 times [2022-07-21 04:19:11,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:11,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730864587] [2022-07-21 04:19:11,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:11,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:11,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:11,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:11,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 04:19:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:11,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 04:19:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:19:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:11,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 04:19:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:11,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 04:19:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:11,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:11,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:11,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730864587] [2022-07-21 04:19:11,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730864587] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:11,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:11,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:11,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823391104] [2022-07-21 04:19:11,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:11,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:11,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:11,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:11,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:11,744 INFO L87 Difference]: Start difference. First operand 567 states and 923 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:14,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:14,062 INFO L93 Difference]: Finished difference Result 1238 states and 2032 transitions. [2022-07-21 04:19:14,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:19:14,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2022-07-21 04:19:14,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:14,069 INFO L225 Difference]: With dead ends: 1238 [2022-07-21 04:19:14,069 INFO L226 Difference]: Without dead ends: 688 [2022-07-21 04:19:14,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:19:14,073 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 646 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:14,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 1961 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 04:19:14,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-21 04:19:14,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 567. [2022-07-21 04:19:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.6444954128440368) internal successors, (717), 453 states have internal predecessors, (717), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:14,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 922 transitions. [2022-07-21 04:19:14,140 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 922 transitions. Word has length 65 [2022-07-21 04:19:14,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:14,141 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 922 transitions. [2022-07-21 04:19:14,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:14,142 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 922 transitions. [2022-07-21 04:19:14,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-21 04:19:14,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:14,144 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:14,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 04:19:14,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:14,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:14,145 INFO L85 PathProgramCache]: Analyzing trace with hash -251104988, now seen corresponding path program 1 times [2022-07-21 04:19:14,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:14,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363223953] [2022-07-21 04:19:14,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:14,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:14,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:14,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 04:19:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:14,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:19:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:19:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:14,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:14,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 04:19:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:19:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:14,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:14,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:14,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363223953] [2022-07-21 04:19:14,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363223953] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:14,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:14,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:14,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60776019] [2022-07-21 04:19:14,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:14,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:14,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:14,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:14,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:14,376 INFO L87 Difference]: Start difference. First operand 567 states and 922 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:16,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:16,471 INFO L93 Difference]: Finished difference Result 1238 states and 2031 transitions. [2022-07-21 04:19:16,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:19:16,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2022-07-21 04:19:16,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:16,477 INFO L225 Difference]: With dead ends: 1238 [2022-07-21 04:19:16,477 INFO L226 Difference]: Without dead ends: 688 [2022-07-21 04:19:16,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:19:16,481 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 643 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:16,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1961 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 04:19:16,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-21 04:19:16,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 567. [2022-07-21 04:19:16,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.6422018348623852) internal successors, (716), 453 states have internal predecessors, (716), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 921 transitions. [2022-07-21 04:19:16,516 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 921 transitions. Word has length 66 [2022-07-21 04:19:16,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:16,517 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 921 transitions. [2022-07-21 04:19:16,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 921 transitions. [2022-07-21 04:19:16,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 04:19:16,518 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:16,518 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:16,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 04:19:16,519 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:16,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:16,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1137558318, now seen corresponding path program 1 times [2022-07-21 04:19:16,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:16,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171997743] [2022-07-21 04:19:16,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:16,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:16,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:16,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 04:19:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:16,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 04:19:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:19:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:19:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:16,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:19:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:16,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:16,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171997743] [2022-07-21 04:19:16,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171997743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:16,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:16,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:16,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273986991] [2022-07-21 04:19:16,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:16,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:16,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:16,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:16,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:16,671 INFO L87 Difference]: Start difference. First operand 567 states and 921 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:18,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:18,923 INFO L93 Difference]: Finished difference Result 1238 states and 2030 transitions. [2022-07-21 04:19:18,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:19:18,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2022-07-21 04:19:18,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:18,929 INFO L225 Difference]: With dead ends: 1238 [2022-07-21 04:19:18,929 INFO L226 Difference]: Without dead ends: 688 [2022-07-21 04:19:18,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:19:18,942 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 640 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:18,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1961 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 04:19:18,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-21 04:19:18,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 567. [2022-07-21 04:19:18,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.639908256880734) internal successors, (715), 453 states have internal predecessors, (715), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:18,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 920 transitions. [2022-07-21 04:19:18,983 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 920 transitions. Word has length 67 [2022-07-21 04:19:18,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:18,983 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 920 transitions. [2022-07-21 04:19:18,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:18,983 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 920 transitions. [2022-07-21 04:19:18,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 04:19:18,984 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:18,985 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:18,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 04:19:18,985 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:18,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:18,986 INFO L85 PathProgramCache]: Analyzing trace with hash 18160608, now seen corresponding path program 1 times [2022-07-21 04:19:18,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:18,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195084053] [2022-07-21 04:19:18,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:18,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:19,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:19,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:19,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 04:19:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 04:19:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:19,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 04:19:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:19,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:19:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:19,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:19,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:19,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195084053] [2022-07-21 04:19:19,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195084053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:19,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:19,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:19,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331193735] [2022-07-21 04:19:19,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:19,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:19,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:19,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:19,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:19,151 INFO L87 Difference]: Start difference. First operand 567 states and 920 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:21,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:21,433 INFO L93 Difference]: Finished difference Result 1263 states and 2074 transitions. [2022-07-21 04:19:21,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:19:21,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2022-07-21 04:19:21,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:21,441 INFO L225 Difference]: With dead ends: 1263 [2022-07-21 04:19:21,441 INFO L226 Difference]: Without dead ends: 717 [2022-07-21 04:19:21,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:19:21,446 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 718 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:21,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1892 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 04:19:21,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-21 04:19:21,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 587. [2022-07-21 04:19:21,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 455 states have (on average 1.6351648351648351) internal successors, (744), 472 states have internal predecessors, (744), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 949 transitions. [2022-07-21 04:19:21,488 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 949 transitions. Word has length 68 [2022-07-21 04:19:21,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:21,489 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 949 transitions. [2022-07-21 04:19:21,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 949 transitions. [2022-07-21 04:19:21,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 04:19:21,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:21,491 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:21,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 04:19:21,491 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:21,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:21,492 INFO L85 PathProgramCache]: Analyzing trace with hash -319430663, now seen corresponding path program 1 times [2022-07-21 04:19:21,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:21,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209191623] [2022-07-21 04:19:21,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:21,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:21,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:21,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:21,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 04:19:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:21,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 04:19:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 04:19:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:21,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:19:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:21,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:21,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:21,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209191623] [2022-07-21 04:19:21,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209191623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:21,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:21,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:21,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288090272] [2022-07-21 04:19:21,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:21,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:21,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:21,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:21,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:21,670 INFO L87 Difference]: Start difference. First operand 587 states and 949 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:23,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:23,829 INFO L93 Difference]: Finished difference Result 1247 states and 2025 transitions. [2022-07-21 04:19:23,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:19:23,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2022-07-21 04:19:23,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:23,836 INFO L225 Difference]: With dead ends: 1247 [2022-07-21 04:19:23,836 INFO L226 Difference]: Without dead ends: 717 [2022-07-21 04:19:23,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:19:23,841 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 693 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:23,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 1890 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 04:19:23,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-21 04:19:23,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 587. [2022-07-21 04:19:23,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 455 states have (on average 1.6241758241758242) internal successors, (739), 472 states have internal predecessors, (739), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 944 transitions. [2022-07-21 04:19:23,880 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 944 transitions. Word has length 69 [2022-07-21 04:19:23,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:23,880 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 944 transitions. [2022-07-21 04:19:23,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:23,881 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 944 transitions. [2022-07-21 04:19:23,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-21 04:19:23,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:23,882 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:23,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 04:19:23,882 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:23,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:23,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2108593275, now seen corresponding path program 1 times [2022-07-21 04:19:23,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:23,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746768864] [2022-07-21 04:19:23,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:23,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:23,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:24,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:24,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:19:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:24,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 04:19:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:24,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:24,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 04:19:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:19:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:24,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:24,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:24,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746768864] [2022-07-21 04:19:24,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746768864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:24,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:24,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:24,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22464317] [2022-07-21 04:19:24,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:24,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:24,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:24,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:24,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:24,055 INFO L87 Difference]: Start difference. First operand 587 states and 944 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:26,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:26,145 INFO L93 Difference]: Finished difference Result 1247 states and 2020 transitions. [2022-07-21 04:19:26,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:19:26,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2022-07-21 04:19:26,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:26,150 INFO L225 Difference]: With dead ends: 1247 [2022-07-21 04:19:26,150 INFO L226 Difference]: Without dead ends: 717 [2022-07-21 04:19:26,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:19:26,153 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 692 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:26,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1890 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 04:19:26,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-21 04:19:26,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 587. [2022-07-21 04:19:26,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 455 states have (on average 1.6131868131868132) internal successors, (734), 472 states have internal predecessors, (734), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 939 transitions. [2022-07-21 04:19:26,187 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 939 transitions. Word has length 70 [2022-07-21 04:19:26,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:26,187 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 939 transitions. [2022-07-21 04:19:26,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 939 transitions. [2022-07-21 04:19:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 04:19:26,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:26,189 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:26,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 04:19:26,190 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:26,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:26,190 INFO L85 PathProgramCache]: Analyzing trace with hash -336255905, now seen corresponding path program 1 times [2022-07-21 04:19:26,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:26,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003984018] [2022-07-21 04:19:26,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:26,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:26,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:26,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:19:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:19:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:26,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:26,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:19:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:19:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:26,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:26,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:26,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003984018] [2022-07-21 04:19:26,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003984018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:26,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:26,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:26,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161003672] [2022-07-21 04:19:26,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:26,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:26,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:26,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:26,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:26,366 INFO L87 Difference]: Start difference. First operand 587 states and 939 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:28,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:28,434 INFO L93 Difference]: Finished difference Result 1274 states and 2054 transitions. [2022-07-21 04:19:28,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:19:28,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-07-21 04:19:28,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:28,444 INFO L225 Difference]: With dead ends: 1274 [2022-07-21 04:19:28,444 INFO L226 Difference]: Without dead ends: 750 [2022-07-21 04:19:28,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:19:28,447 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 707 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:28,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1946 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 04:19:28,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-07-21 04:19:28,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 591. [2022-07-21 04:19:28,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 459 states have (on average 1.607843137254902) internal successors, (738), 476 states have internal predecessors, (738), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:28,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 943 transitions. [2022-07-21 04:19:28,479 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 943 transitions. Word has length 71 [2022-07-21 04:19:28,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:28,480 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 943 transitions. [2022-07-21 04:19:28,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:28,480 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 943 transitions. [2022-07-21 04:19:28,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 04:19:28,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:28,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:28,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 04:19:28,482 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:28,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1651827202, now seen corresponding path program 1 times [2022-07-21 04:19:28,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:28,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901604723] [2022-07-21 04:19:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:28,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:28,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:28,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:28,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:28,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:19:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:28,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:19:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:28,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:28,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:19:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:19:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:28,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:28,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901604723] [2022-07-21 04:19:28,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901604723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:28,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:28,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:28,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272550463] [2022-07-21 04:19:28,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:28,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:28,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:28,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:28,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:28,618 INFO L87 Difference]: Start difference. First operand 591 states and 943 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:30,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:30,569 INFO L93 Difference]: Finished difference Result 1257 states and 2024 transitions. [2022-07-21 04:19:30,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:19:30,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-07-21 04:19:30,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:30,573 INFO L225 Difference]: With dead ends: 1257 [2022-07-21 04:19:30,573 INFO L226 Difference]: Without dead ends: 723 [2022-07-21 04:19:30,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:19:30,575 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 691 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:30,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1890 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 04:19:30,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-07-21 04:19:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 591. [2022-07-21 04:19:30,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 459 states have (on average 1.5969498910675382) internal successors, (733), 476 states have internal predecessors, (733), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 938 transitions. [2022-07-21 04:19:30,607 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 938 transitions. Word has length 71 [2022-07-21 04:19:30,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:30,608 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 938 transitions. [2022-07-21 04:19:30,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:30,608 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 938 transitions. [2022-07-21 04:19:30,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 04:19:30,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:30,609 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:30,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 04:19:30,610 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:30,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:30,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2104422631, now seen corresponding path program 1 times [2022-07-21 04:19:30,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:30,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966263721] [2022-07-21 04:19:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:30,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:30,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:30,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 04:19:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 04:19:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 04:19:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 04:19:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:30,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:30,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:30,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966263721] [2022-07-21 04:19:30,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966263721] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:30,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:30,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:30,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320317471] [2022-07-21 04:19:30,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:30,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:30,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:30,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:30,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:30,751 INFO L87 Difference]: Start difference. First operand 591 states and 938 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:32,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:32,777 INFO L93 Difference]: Finished difference Result 1282 states and 2053 transitions. [2022-07-21 04:19:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:19:32,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2022-07-21 04:19:32,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:32,782 INFO L225 Difference]: With dead ends: 1282 [2022-07-21 04:19:32,782 INFO L226 Difference]: Without dead ends: 756 [2022-07-21 04:19:32,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:19:32,786 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 710 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:32,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1926 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 04:19:32,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-07-21 04:19:32,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 597. [2022-07-21 04:19:32,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 465 states have (on average 1.589247311827957) internal successors, (739), 482 states have internal predecessors, (739), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:32,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 944 transitions. [2022-07-21 04:19:32,824 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 944 transitions. Word has length 72 [2022-07-21 04:19:32,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:32,824 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 944 transitions. [2022-07-21 04:19:32,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:32,824 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 944 transitions. [2022-07-21 04:19:32,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 04:19:32,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:32,825 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:32,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 04:19:32,826 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:32,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:32,826 INFO L85 PathProgramCache]: Analyzing trace with hash -290748630, now seen corresponding path program 1 times [2022-07-21 04:19:32,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:32,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671115485] [2022-07-21 04:19:32,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:32,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:32,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:32,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:32,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:32,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 04:19:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:32,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 04:19:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:32,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:32,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 04:19:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:32,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 04:19:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:32,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:32,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:32,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671115485] [2022-07-21 04:19:32,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671115485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:32,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:32,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:32,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857426402] [2022-07-21 04:19:32,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:32,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:32,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:32,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:32,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:32,976 INFO L87 Difference]: Start difference. First operand 597 states and 944 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:35,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:35,028 INFO L93 Difference]: Finished difference Result 1272 states and 2033 transitions. [2022-07-21 04:19:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:19:35,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2022-07-21 04:19:35,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:35,032 INFO L225 Difference]: With dead ends: 1272 [2022-07-21 04:19:35,032 INFO L226 Difference]: Without dead ends: 732 [2022-07-21 04:19:35,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:19:35,034 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 690 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:35,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1890 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 04:19:35,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-07-21 04:19:35,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 597. [2022-07-21 04:19:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 465 states have (on average 1.578494623655914) internal successors, (734), 482 states have internal predecessors, (734), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 939 transitions. [2022-07-21 04:19:35,068 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 939 transitions. Word has length 72 [2022-07-21 04:19:35,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:35,068 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 939 transitions. [2022-07-21 04:19:35,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 939 transitions. [2022-07-21 04:19:35,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 04:19:35,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:35,070 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:35,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 04:19:35,070 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:35,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:35,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1787437276, now seen corresponding path program 1 times [2022-07-21 04:19:35,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:35,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942325443] [2022-07-21 04:19:35,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:35,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:35,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:35,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:35,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:19:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:35,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:19:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:35,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:35,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:19:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:35,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:19:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:35,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:35,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:35,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942325443] [2022-07-21 04:19:35,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942325443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:35,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:35,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:35,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747181347] [2022-07-21 04:19:35,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:35,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:35,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:35,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:35,234 INFO L87 Difference]: Start difference. First operand 597 states and 939 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:37,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:37,336 INFO L93 Difference]: Finished difference Result 1294 states and 2056 transitions. [2022-07-21 04:19:37,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:19:37,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-07-21 04:19:37,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:37,339 INFO L225 Difference]: With dead ends: 1294 [2022-07-21 04:19:37,339 INFO L226 Difference]: Without dead ends: 765 [2022-07-21 04:19:37,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:19:37,341 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 702 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:37,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1921 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 04:19:37,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-07-21 04:19:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 605. [2022-07-21 04:19:37,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 473 states have (on average 1.5687103594080338) internal successors, (742), 490 states have internal predecessors, (742), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:37,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 947 transitions. [2022-07-21 04:19:37,374 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 947 transitions. Word has length 73 [2022-07-21 04:19:37,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:37,374 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 947 transitions. [2022-07-21 04:19:37,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 947 transitions. [2022-07-21 04:19:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 04:19:37,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:37,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:37,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 04:19:37,376 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:37,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:37,377 INFO L85 PathProgramCache]: Analyzing trace with hash -960753661, now seen corresponding path program 1 times [2022-07-21 04:19:37,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:37,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458167911] [2022-07-21 04:19:37,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:37,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:37,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:37,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:37,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:37,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:19:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:19:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:37,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:37,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:19:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:37,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:19:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:37,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:37,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:37,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458167911] [2022-07-21 04:19:37,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458167911] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:37,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:37,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 04:19:37,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480966605] [2022-07-21 04:19:37,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:37,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 04:19:37,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:37,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 04:19:37,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 04:19:37,541 INFO L87 Difference]: Start difference. First operand 605 states and 947 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-21 04:19:40,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:40,226 INFO L93 Difference]: Finished difference Result 1303 states and 2063 transitions. [2022-07-21 04:19:40,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:19:40,226 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2022-07-21 04:19:40,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:40,230 INFO L225 Difference]: With dead ends: 1303 [2022-07-21 04:19:40,230 INFO L226 Difference]: Without dead ends: 773 [2022-07-21 04:19:40,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:19:40,232 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 717 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 3421 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:40,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 3421 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 04:19:40,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-07-21 04:19:40,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 616. [2022-07-21 04:19:40,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 481 states have (on average 1.5634095634095635) internal successors, (752), 500 states have internal predecessors, (752), 104 states have call successors, (104), 29 states have call predecessors, (104), 30 states have return successors, (105), 100 states have call predecessors, (105), 103 states have call successors, (105) [2022-07-21 04:19:40,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 961 transitions. [2022-07-21 04:19:40,278 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 961 transitions. Word has length 73 [2022-07-21 04:19:40,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:40,278 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 961 transitions. [2022-07-21 04:19:40,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-21 04:19:40,279 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 961 transitions. [2022-07-21 04:19:40,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 04:19:40,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:40,280 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:40,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 04:19:40,280 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:40,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash -330295036, now seen corresponding path program 1 times [2022-07-21 04:19:40,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:40,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836305328] [2022-07-21 04:19:40,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:40,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:40,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:40,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:40,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:19:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:19:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:40,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:19:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:40,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:19:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:40,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:40,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836305328] [2022-07-21 04:19:40,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836305328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:40,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:40,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:40,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465084912] [2022-07-21 04:19:40,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:40,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:40,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:40,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:40,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:40,430 INFO L87 Difference]: Start difference. First operand 616 states and 961 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:42,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:42,435 INFO L93 Difference]: Finished difference Result 1353 states and 2127 transitions. [2022-07-21 04:19:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:19:42,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-07-21 04:19:42,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:42,443 INFO L225 Difference]: With dead ends: 1353 [2022-07-21 04:19:42,444 INFO L226 Difference]: Without dead ends: 734 [2022-07-21 04:19:42,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 04:19:42,447 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 640 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:42,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 2022 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 04:19:42,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2022-07-21 04:19:42,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 597. [2022-07-21 04:19:42,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 465 states have (on average 1.5677419354838709) internal successors, (729), 482 states have internal predecessors, (729), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 934 transitions. [2022-07-21 04:19:42,480 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 934 transitions. Word has length 73 [2022-07-21 04:19:42,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:42,481 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 934 transitions. [2022-07-21 04:19:42,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 934 transitions. [2022-07-21 04:19:42,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 04:19:42,484 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:42,484 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:42,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 04:19:42,484 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:42,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:42,485 INFO L85 PathProgramCache]: Analyzing trace with hash -124526004, now seen corresponding path program 1 times [2022-07-21 04:19:42,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:42,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685058680] [2022-07-21 04:19:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:42,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:42,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:42,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:42,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:42,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:19:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:19:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:42,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:19:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:19:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:42,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:42,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685058680] [2022-07-21 04:19:42,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685058680] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:42,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:42,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:42,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566475024] [2022-07-21 04:19:42,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:42,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:42,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:42,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:42,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:42,637 INFO L87 Difference]: Start difference. First operand 597 states and 934 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:44,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:44,656 INFO L93 Difference]: Finished difference Result 1300 states and 2052 transitions. [2022-07-21 04:19:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:19:44,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2022-07-21 04:19:44,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:44,660 INFO L225 Difference]: With dead ends: 1300 [2022-07-21 04:19:44,660 INFO L226 Difference]: Without dead ends: 767 [2022-07-21 04:19:44,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:19:44,662 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 684 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:44,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1912 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 04:19:44,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2022-07-21 04:19:44,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 607. [2022-07-21 04:19:44,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 475 states have (on average 1.5557894736842106) internal successors, (739), 492 states have internal predecessors, (739), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 944 transitions. [2022-07-21 04:19:44,694 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 944 transitions. Word has length 74 [2022-07-21 04:19:44,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:44,695 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 944 transitions. [2022-07-21 04:19:44,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:44,695 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 944 transitions. [2022-07-21 04:19:44,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 04:19:44,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:44,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:44,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 04:19:44,696 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:44,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:44,697 INFO L85 PathProgramCache]: Analyzing trace with hash -142384329, now seen corresponding path program 1 times [2022-07-21 04:19:44,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:44,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367198203] [2022-07-21 04:19:44,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:44,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:44,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:44,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:19:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:44,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 04:19:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:19:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:44,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:19:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:44,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:44,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:44,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367198203] [2022-07-21 04:19:44,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367198203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:44,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:44,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:19:44,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886694040] [2022-07-21 04:19:44,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:44,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:44,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:44,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:44,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:44,821 INFO L87 Difference]: Start difference. First operand 607 states and 944 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:46,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:46,841 INFO L93 Difference]: Finished difference Result 1296 states and 2040 transitions. [2022-07-21 04:19:46,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:19:46,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2022-07-21 04:19:46,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:46,844 INFO L225 Difference]: With dead ends: 1296 [2022-07-21 04:19:46,845 INFO L226 Difference]: Without dead ends: 737 [2022-07-21 04:19:46,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:19:46,846 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 704 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:46,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1872 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 04:19:46,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-07-21 04:19:46,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 607. [2022-07-21 04:19:46,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 475 states have (on average 1.5473684210526315) internal successors, (735), 492 states have internal predecessors, (735), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:19:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 940 transitions. [2022-07-21 04:19:46,878 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 940 transitions. Word has length 75 [2022-07-21 04:19:46,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:46,879 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 940 transitions. [2022-07-21 04:19:46,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 04:19:46,879 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 940 transitions. [2022-07-21 04:19:46,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 04:19:46,880 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:46,880 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:46,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 04:19:46,881 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:46,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:46,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2070657031, now seen corresponding path program 1 times [2022-07-21 04:19:46,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:46,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528167277] [2022-07-21 04:19:46,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:46,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:46,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:47,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:47,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:19:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:47,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 04:19:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:47,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:47,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:19:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:47,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:19:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:19:47,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:47,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528167277] [2022-07-21 04:19:47,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528167277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:47,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:19:47,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 04:19:47,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840603693] [2022-07-21 04:19:47,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:47,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:19:47,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:47,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:19:47,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 04:19:47,018 INFO L87 Difference]: Start difference. First operand 607 states and 940 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-21 04:19:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:49,840 INFO L93 Difference]: Finished difference Result 1893 states and 3030 transitions. [2022-07-21 04:19:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:19:49,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2022-07-21 04:19:49,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:49,848 INFO L225 Difference]: With dead ends: 1893 [2022-07-21 04:19:49,848 INFO L226 Difference]: Without dead ends: 1362 [2022-07-21 04:19:49,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:19:49,850 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 1933 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2037 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:49,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2037 Valid, 1537 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-21 04:19:49,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-07-21 04:19:49,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1071. [2022-07-21 04:19:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 839 states have (on average 1.5756853396901074) internal successors, (1322), 865 states have internal predecessors, (1322), 182 states have call successors, (182), 51 states have call predecessors, (182), 49 states have return successors, (187), 169 states have call predecessors, (187), 180 states have call successors, (187) [2022-07-21 04:19:49,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1691 transitions. [2022-07-21 04:19:49,939 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1691 transitions. Word has length 75 [2022-07-21 04:19:49,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:49,939 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1691 transitions. [2022-07-21 04:19:49,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-21 04:19:49,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1691 transitions. [2022-07-21 04:19:49,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-21 04:19:49,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:49,943 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:49,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 04:19:49,944 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:49,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:49,945 INFO L85 PathProgramCache]: Analyzing trace with hash -144697500, now seen corresponding path program 1 times [2022-07-21 04:19:49,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:49,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960104176] [2022-07-21 04:19:49,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:49,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:19:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:19:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:19:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:19:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:19:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:19:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:19:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 04:19:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:19:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,281 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-21 04:19:50,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:50,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960104176] [2022-07-21 04:19:50,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960104176] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:19:50,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968218066] [2022-07-21 04:19:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:50,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:19:50,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:19:50,288 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) [2022-07-21 04:19:50,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 04:19:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:50,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 04:19:50,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:19:50,732 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-21 04:19:50,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:19:50,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968218066] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:50,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:19:50,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2022-07-21 04:19:50,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739418591] [2022-07-21 04:19:50,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:50,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:19:50,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:50,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:19:50,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:19:50,735 INFO L87 Difference]: Start difference. First operand 1071 states and 1691 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 04:19:51,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:51,254 INFO L93 Difference]: Finished difference Result 2737 states and 4326 transitions. [2022-07-21 04:19:51,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 04:19:51,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2022-07-21 04:19:51,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:51,263 INFO L225 Difference]: With dead ends: 2737 [2022-07-21 04:19:51,263 INFO L226 Difference]: Without dead ends: 1742 [2022-07-21 04:19:51,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-07-21 04:19:51,268 INFO L413 NwaCegarLoop]: 1171 mSDtfsCounter, 868 mSDsluCounter, 3458 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 4629 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:51,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 4629 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 04:19:51,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-07-21 04:19:51,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1736. [2022-07-21 04:19:51,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1351 states have (on average 1.541820873427091) internal successors, (2083), 1380 states have internal predecessors, (2083), 297 states have call successors, (297), 87 states have call predecessors, (297), 87 states have return successors, (327), 284 states have call predecessors, (327), 293 states have call successors, (327) [2022-07-21 04:19:51,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2707 transitions. [2022-07-21 04:19:51,389 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2707 transitions. Word has length 129 [2022-07-21 04:19:51,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:51,389 INFO L495 AbstractCegarLoop]: Abstraction has 1736 states and 2707 transitions. [2022-07-21 04:19:51,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 04:19:51,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2707 transitions. [2022-07-21 04:19:51,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-21 04:19:51,394 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:51,394 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:51,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 04:19:51,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:19:51,608 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:51,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:51,608 INFO L85 PathProgramCache]: Analyzing trace with hash -782717716, now seen corresponding path program 1 times [2022-07-21 04:19:51,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:51,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873518767] [2022-07-21 04:19:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:51,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:51,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:51,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:51,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:51,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:19:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:51,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:19:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:51,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:19:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:51,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:19:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:51,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:52,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:52,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:19:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:52,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:19:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:52,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:19:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:52,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:52,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 04:19:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 04:19:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:52,041 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-21 04:19:52,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:52,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873518767] [2022-07-21 04:19:52,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873518767] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:19:52,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385374370] [2022-07-21 04:19:52,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:52,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:19:52,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:19:52,044 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) [2022-07-21 04:19:52,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 04:19:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:52,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 04:19:52,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:19:52,439 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 04:19:52,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:19:52,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385374370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:52,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:19:52,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-07-21 04:19:52,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904553257] [2022-07-21 04:19:52,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:52,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:52,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:52,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:52,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-07-21 04:19:52,441 INFO L87 Difference]: Start difference. First operand 1736 states and 2707 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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) [2022-07-21 04:19:52,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:52,989 INFO L93 Difference]: Finished difference Result 3428 states and 5518 transitions. [2022-07-21 04:19:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:19:52,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 130 [2022-07-21 04:19:52,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:52,998 INFO L225 Difference]: With dead ends: 3428 [2022-07-21 04:19:52,998 INFO L226 Difference]: Without dead ends: 1768 [2022-07-21 04:19:53,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-07-21 04:19:53,008 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 826 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:53,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 2181 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 04:19:53,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-21 04:19:53,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1768. [2022-07-21 04:19:53,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1768 states, 1379 states have (on average 1.5453226976069616) internal successors, (2131), 1408 states have internal predecessors, (2131), 297 states have call successors, (297), 91 states have call predecessors, (297), 91 states have return successors, (331), 284 states have call predecessors, (331), 293 states have call successors, (331) [2022-07-21 04:19:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 2759 transitions. [2022-07-21 04:19:53,135 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 2759 transitions. Word has length 130 [2022-07-21 04:19:53,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:53,135 INFO L495 AbstractCegarLoop]: Abstraction has 1768 states and 2759 transitions. [2022-07-21 04:19:53,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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) [2022-07-21 04:19:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 2759 transitions. [2022-07-21 04:19:53,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-21 04:19:53,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:53,141 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:53,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 04:19:53,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-07-21 04:19:53,364 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:53,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1975297937, now seen corresponding path program 1 times [2022-07-21 04:19:53,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:53,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40787482] [2022-07-21 04:19:53,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:53,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:19:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:19:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 04:19:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 04:19:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 04:19:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:19:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 04:19:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 04:19:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 04:19:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:19:53,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:53,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40787482] [2022-07-21 04:19:53,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40787482] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:19:53,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101913211] [2022-07-21 04:19:53,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:53,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:19:53,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:19:53,751 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) [2022-07-21 04:19:53,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 04:19:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:53,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 04:19:53,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:19:54,092 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-21 04:19:54,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:19:54,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101913211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:54,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:19:54,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-07-21 04:19:54,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690173548] [2022-07-21 04:19:54,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:54,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:54,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:54,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:54,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:19:54,094 INFO L87 Difference]: Start difference. First operand 1768 states and 2759 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (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) [2022-07-21 04:19:54,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:54,586 INFO L93 Difference]: Finished difference Result 3492 states and 5610 transitions. [2022-07-21 04:19:54,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:19:54,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (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 133 [2022-07-21 04:19:54,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:54,596 INFO L225 Difference]: With dead ends: 3492 [2022-07-21 04:19:54,596 INFO L226 Difference]: Without dead ends: 1800 [2022-07-21 04:19:54,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:19:54,605 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 819 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:54,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 2181 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 04:19:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2022-07-21 04:19:54,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2022-07-21 04:19:54,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1407 states have (on average 1.548685145700071) internal successors, (2179), 1436 states have internal predecessors, (2179), 297 states have call successors, (297), 95 states have call predecessors, (297), 95 states have return successors, (335), 284 states have call predecessors, (335), 293 states have call successors, (335) [2022-07-21 04:19:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2811 transitions. [2022-07-21 04:19:54,757 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2811 transitions. Word has length 133 [2022-07-21 04:19:54,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:54,758 INFO L495 AbstractCegarLoop]: Abstraction has 1800 states and 2811 transitions. [2022-07-21 04:19:54,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (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) [2022-07-21 04:19:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2811 transitions. [2022-07-21 04:19:54,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-21 04:19:54,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:54,763 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:54,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 04:19:54,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:19:54,992 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:54,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:54,992 INFO L85 PathProgramCache]: Analyzing trace with hash 295036936, now seen corresponding path program 1 times [2022-07-21 04:19:54,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:54,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256166736] [2022-07-21 04:19:54,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:54,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:19:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:19:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 04:19:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:19:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 04:19:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 04:19:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 04:19:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:19:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:19:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-21 04:19:55,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:55,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256166736] [2022-07-21 04:19:55,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256166736] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:19:55,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706018407] [2022-07-21 04:19:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:55,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:19:55,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:19:55,331 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) [2022-07-21 04:19:55,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 04:19:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:55,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 04:19:55,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:19:55,715 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-21 04:19:55,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:19:55,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706018407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:55,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:19:55,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-07-21 04:19:55,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019960347] [2022-07-21 04:19:55,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:55,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:55,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:55,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:55,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:19:55,718 INFO L87 Difference]: Start difference. First operand 1800 states and 2811 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (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) [2022-07-21 04:19:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:56,208 INFO L93 Difference]: Finished difference Result 3556 states and 5702 transitions. [2022-07-21 04:19:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:19:56,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (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 136 [2022-07-21 04:19:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:56,218 INFO L225 Difference]: With dead ends: 3556 [2022-07-21 04:19:56,219 INFO L226 Difference]: Without dead ends: 1832 [2022-07-21 04:19:56,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:19:56,228 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 824 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:56,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2181 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 04:19:56,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2022-07-21 04:19:56,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1832. [2022-07-21 04:19:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1832 states, 1435 states have (on average 1.5519163763066202) internal successors, (2227), 1464 states have internal predecessors, (2227), 297 states have call successors, (297), 99 states have call predecessors, (297), 99 states have return successors, (339), 284 states have call predecessors, (339), 293 states have call successors, (339) [2022-07-21 04:19:56,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2863 transitions. [2022-07-21 04:19:56,353 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2863 transitions. Word has length 136 [2022-07-21 04:19:56,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:56,355 INFO L495 AbstractCegarLoop]: Abstraction has 1832 states and 2863 transitions. [2022-07-21 04:19:56,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (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) [2022-07-21 04:19:56,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2863 transitions. [2022-07-21 04:19:56,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-21 04:19:56,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:56,361 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:56,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 04:19:56,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:19:56,579 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:56,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:56,580 INFO L85 PathProgramCache]: Analyzing trace with hash 475414083, now seen corresponding path program 1 times [2022-07-21 04:19:56,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:56,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333643429] [2022-07-21 04:19:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:56,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:19:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:19:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 04:19:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:19:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 04:19:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 04:19:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:19:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 04:19:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 04:19:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:19:56,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:56,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333643429] [2022-07-21 04:19:56,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333643429] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:19:56,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146514778] [2022-07-21 04:19:56,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:56,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:19:56,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:19:56,928 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) [2022-07-21 04:19:56,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 04:19:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:57,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 04:19:57,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:19:57,278 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 04:19:57,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:19:57,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146514778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:57,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:19:57,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-07-21 04:19:57,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979225976] [2022-07-21 04:19:57,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:57,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:19:57,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:57,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:19:57,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:19:57,280 INFO L87 Difference]: Start difference. First operand 1832 states and 2863 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (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) [2022-07-21 04:19:57,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:19:57,733 INFO L93 Difference]: Finished difference Result 3620 states and 5794 transitions. [2022-07-21 04:19:57,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:19:57,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (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 139 [2022-07-21 04:19:57,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:19:57,741 INFO L225 Difference]: With dead ends: 3620 [2022-07-21 04:19:57,741 INFO L226 Difference]: Without dead ends: 1864 [2022-07-21 04:19:57,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:19:57,748 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 832 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:19:57,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 2181 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 04:19:57,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-07-21 04:19:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1864. [2022-07-21 04:19:57,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1864 states, 1463 states have (on average 1.555023923444976) internal successors, (2275), 1492 states have internal predecessors, (2275), 297 states have call successors, (297), 103 states have call predecessors, (297), 103 states have return successors, (343), 284 states have call predecessors, (343), 293 states have call successors, (343) [2022-07-21 04:19:57,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 2915 transitions. [2022-07-21 04:19:57,892 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 2915 transitions. Word has length 139 [2022-07-21 04:19:57,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:19:57,893 INFO L495 AbstractCegarLoop]: Abstraction has 1864 states and 2915 transitions. [2022-07-21 04:19:57,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (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) [2022-07-21 04:19:57,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 2915 transitions. [2022-07-21 04:19:57,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 04:19:57,898 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:19:57,898 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:19:57,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 04:19:58,123 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,SelfDestructingSolverStorable22 [2022-07-21 04:19:58,124 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:19:58,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:19:58,124 INFO L85 PathProgramCache]: Analyzing trace with hash 342056228, now seen corresponding path program 1 times [2022-07-21 04:19:58,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:19:58,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947703393] [2022-07-21 04:19:58,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:58,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:19:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:19:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:19:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:19:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:19:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:19:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:19:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:19:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:19:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:19:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:19:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:19:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 04:19:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,514 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 04:19:58,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:19:58,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947703393] [2022-07-21 04:19:58,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947703393] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:19:58,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743387724] [2022-07-21 04:19:58,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:19:58,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:19:58,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:19:58,516 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) [2022-07-21 04:19:58,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 04:19:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:19:58,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 04:19:58,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:19:58,899 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 04:19:58,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:19:58,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743387724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:19:58,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:19:58,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-07-21 04:19:58,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701097465] [2022-07-21 04:19:58,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:19:58,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:19:58,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:19:58,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:19:58,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-21 04:19:58,903 INFO L87 Difference]: Start difference. First operand 1864 states and 2915 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2022-07-21 04:20:00,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:20:00,284 INFO L93 Difference]: Finished difference Result 3691 states and 5801 transitions. [2022-07-21 04:20:00,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:20:00,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 142 [2022-07-21 04:20:00,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:20:00,293 INFO L225 Difference]: With dead ends: 3691 [2022-07-21 04:20:00,294 INFO L226 Difference]: Without dead ends: 1906 [2022-07-21 04:20:00,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-21 04:20:00,299 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 2116 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:20:00,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 1516 Invalid, 1859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 04:20:00,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-07-21 04:20:00,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1768. [2022-07-21 04:20:00,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1768 states, 1339 states have (on average 1.5242718446601942) internal successors, (2041), 1388 states have internal predecessors, (2041), 331 states have call successors, (331), 93 states have call predecessors, (331), 97 states have return successors, (377), 312 states have call predecessors, (377), 327 states have call successors, (377) [2022-07-21 04:20:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 2749 transitions. [2022-07-21 04:20:00,447 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 2749 transitions. Word has length 142 [2022-07-21 04:20:00,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:20:00,447 INFO L495 AbstractCegarLoop]: Abstraction has 1768 states and 2749 transitions. [2022-07-21 04:20:00,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2022-07-21 04:20:00,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 2749 transitions. [2022-07-21 04:20:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 04:20:00,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:20:00,452 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:20:00,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 04:20:00,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:20:00,672 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:20:00,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:20:00,672 INFO L85 PathProgramCache]: Analyzing trace with hash -611883930, now seen corresponding path program 1 times [2022-07-21 04:20:00,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:20:00,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895156959] [2022-07-21 04:20:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:00,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:20:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:00,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:20:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:00,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:20:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:20:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:00,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:20:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:20:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:20:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:20:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 04:20:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,082 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 04:20:01,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:20:01,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895156959] [2022-07-21 04:20:01,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895156959] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:20:01,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459483826] [2022-07-21 04:20:01,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:01,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:20:01,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:20:01,088 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) [2022-07-21 04:20:01,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 04:20:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:01,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-21 04:20:01,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:20:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-21 04:20:01,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:20:01,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459483826] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:20:01,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:20:01,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2022-07-21 04:20:01,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637102592] [2022-07-21 04:20:01,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:20:01,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:20:01,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:20:01,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:20:01,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-21 04:20:01,482 INFO L87 Difference]: Start difference. First operand 1768 states and 2749 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-21 04:20:05,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:20:05,320 INFO L93 Difference]: Finished difference Result 7394 states and 11883 transitions. [2022-07-21 04:20:05,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 04:20:05,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 142 [2022-07-21 04:20:05,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:20:05,346 INFO L225 Difference]: With dead ends: 7394 [2022-07-21 04:20:05,346 INFO L226 Difference]: Without dead ends: 5704 [2022-07-21 04:20:05,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2022-07-21 04:20:05,353 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 2758 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 5552 mSolverCounterSat, 872 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2866 SdHoareTripleChecker+Valid, 3139 SdHoareTripleChecker+Invalid, 6424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 872 IncrementalHoareTripleChecker+Valid, 5552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:20:05,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2866 Valid, 3139 Invalid, 6424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [872 Valid, 5552 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-21 04:20:05,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2022-07-21 04:20:05,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 5288. [2022-07-21 04:20:05,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 3961 states have (on average 1.5319363797020955) internal successors, (6068), 4115 states have internal predecessors, (6068), 1016 states have call successors, (1016), 261 states have call predecessors, (1016), 310 states have return successors, (1360), 988 states have call predecessors, (1360), 1008 states have call successors, (1360) [2022-07-21 04:20:05,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 8444 transitions. [2022-07-21 04:20:05,774 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 8444 transitions. Word has length 142 [2022-07-21 04:20:05,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:20:05,774 INFO L495 AbstractCegarLoop]: Abstraction has 5288 states and 8444 transitions. [2022-07-21 04:20:05,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-21 04:20:05,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 8444 transitions. [2022-07-21 04:20:05,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 04:20:05,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:20:05,781 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:20:05,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 04:20:06,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:20:06,007 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:20:06,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:20:06,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1943849335, now seen corresponding path program 1 times [2022-07-21 04:20:06,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:20:06,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388800754] [2022-07-21 04:20:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:06,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:20:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:20:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:20:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:20:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:20:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:20:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:20:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:20:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 04:20:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 04:20:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-21 04:20:06,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:20:06,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388800754] [2022-07-21 04:20:06,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388800754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:20:06,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:20:06,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:20:06,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635286055] [2022-07-21 04:20:06,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:20:06,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:20:06,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:20:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:20:06,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:20:06,361 INFO L87 Difference]: Start difference. First operand 5288 states and 8444 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-21 04:20:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:20:22,449 INFO L93 Difference]: Finished difference Result 24972 states and 41683 transitions. [2022-07-21 04:20:22,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-21 04:20:22,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 147 [2022-07-21 04:20:22,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:20:22,544 INFO L225 Difference]: With dead ends: 24972 [2022-07-21 04:20:22,544 INFO L226 Difference]: Without dead ends: 19766 [2022-07-21 04:20:22,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2022-07-21 04:20:22,579 INFO L413 NwaCegarLoop]: 1509 mSDtfsCounter, 6195 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 6042 mSolverCounterSat, 3993 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6261 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 10035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3993 IncrementalHoareTripleChecker+Valid, 6042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:20:22,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6261 Valid, 2878 Invalid, 10035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3993 Valid, 6042 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2022-07-21 04:20:22,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19766 states. [2022-07-21 04:20:23,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19766 to 5352. [2022-07-21 04:20:23,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 4007 states have (on average 1.5285749937609183) internal successors, (6125), 4159 states have internal predecessors, (6125), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-21 04:20:23,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 8520 transitions. [2022-07-21 04:20:23,474 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 8520 transitions. Word has length 147 [2022-07-21 04:20:23,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:20:23,475 INFO L495 AbstractCegarLoop]: Abstraction has 5352 states and 8520 transitions. [2022-07-21 04:20:23,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-21 04:20:23,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 8520 transitions. [2022-07-21 04:20:23,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 04:20:23,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:20:23,481 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:20:23,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-21 04:20:23,482 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:20:23,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:20:23,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1691586439, now seen corresponding path program 1 times [2022-07-21 04:20:23,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:20:23,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212158090] [2022-07-21 04:20:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:23,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:20:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:20:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:20:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:20:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:20:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:20:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:20:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:20:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 04:20:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 04:20:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:23,854 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 04:20:23,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:20:23,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212158090] [2022-07-21 04:20:23,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212158090] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:20:23,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079374423] [2022-07-21 04:20:23,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:23,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:20:23,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:20:23,856 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) [2022-07-21 04:20:23,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 04:20:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:24,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 04:20:24,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:20:24,250 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-21 04:20:24,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:20:24,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079374423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:20:24,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:20:24,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-07-21 04:20:24,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216846500] [2022-07-21 04:20:24,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:20:24,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:20:24,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:20:24,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:20:24,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-07-21 04:20:24,252 INFO L87 Difference]: Start difference. First operand 5352 states and 8520 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:20:25,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:20:25,130 INFO L93 Difference]: Finished difference Result 5480 states and 8801 transitions. [2022-07-21 04:20:25,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 04:20:25,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2022-07-21 04:20:25,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:20:25,157 INFO L225 Difference]: With dead ends: 5480 [2022-07-21 04:20:25,158 INFO L226 Difference]: Without dead ends: 5478 [2022-07-21 04:20:25,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:20:25,164 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 399 mSDsluCounter, 3039 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:20:25,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 4065 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 04:20:25,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2022-07-21 04:20:25,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5352. [2022-07-21 04:20:25,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 4007 states have (on average 1.521836785625156) internal successors, (6098), 4159 states have internal predecessors, (6098), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-21 04:20:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 8493 transitions. [2022-07-21 04:20:25,764 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 8493 transitions. Word has length 147 [2022-07-21 04:20:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:20:25,764 INFO L495 AbstractCegarLoop]: Abstraction has 5352 states and 8493 transitions. [2022-07-21 04:20:25,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:20:25,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 8493 transitions. [2022-07-21 04:20:25,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-21 04:20:25,769 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:20:25,770 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:20:25,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 04:20:25,991 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,SelfDestructingSolverStorable26 [2022-07-21 04:20:25,991 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:20:25,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:20:25,992 INFO L85 PathProgramCache]: Analyzing trace with hash 911918580, now seen corresponding path program 1 times [2022-07-21 04:20:25,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:20:25,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538011234] [2022-07-21 04:20:25,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:25,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:20:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:20:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:20:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:20:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:20:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:20:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 04:20:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:20:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:20:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:20:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 04:20:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-21 04:20:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-21 04:20:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-21 04:20:26,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:20:26,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538011234] [2022-07-21 04:20:26,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538011234] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:20:26,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:20:26,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 04:20:26,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979605937] [2022-07-21 04:20:26,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:20:26,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 04:20:26,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:20:26,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 04:20:26,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:20:26,352 INFO L87 Difference]: Start difference. First operand 5352 states and 8493 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-21 04:20:37,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:20:37,699 INFO L93 Difference]: Finished difference Result 21511 states and 36158 transitions. [2022-07-21 04:20:37,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 04:20:37,701 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 170 [2022-07-21 04:20:37,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:20:37,791 INFO L225 Difference]: With dead ends: 21511 [2022-07-21 04:20:37,792 INFO L226 Difference]: Without dead ends: 16237 [2022-07-21 04:20:37,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=186, Invalid=366, Unknown=0, NotChecked=0, Total=552 [2022-07-21 04:20:37,830 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 5508 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 4865 mSolverCounterSat, 2537 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5690 SdHoareTripleChecker+Valid, 2378 SdHoareTripleChecker+Invalid, 7402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2537 IncrementalHoareTripleChecker+Valid, 4865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:20:37,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5690 Valid, 2378 Invalid, 7402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2537 Valid, 4865 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-07-21 04:20:37,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16237 states. [2022-07-21 04:20:38,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16237 to 5376. [2022-07-21 04:20:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5376 states, 4031 states have (on average 1.518729843711238) internal successors, (6122), 4183 states have internal predecessors, (6122), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-21 04:20:38,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 8517 transitions. [2022-07-21 04:20:38,793 INFO L78 Accepts]: Start accepts. Automaton has 5376 states and 8517 transitions. Word has length 170 [2022-07-21 04:20:38,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:20:38,794 INFO L495 AbstractCegarLoop]: Abstraction has 5376 states and 8517 transitions. [2022-07-21 04:20:38,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-21 04:20:38,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5376 states and 8517 transitions. [2022-07-21 04:20:38,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 04:20:38,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:20:38,799 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:20:38,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-21 04:20:38,800 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:20:38,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:20:38,800 INFO L85 PathProgramCache]: Analyzing trace with hash -561018042, now seen corresponding path program 1 times [2022-07-21 04:20:38,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:20:38,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162050844] [2022-07-21 04:20:38,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:38,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:20:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:38,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:20:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:38,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:38,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:20:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:38,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:20:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:20:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:20:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 04:20:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:20:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:20:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:20:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 04:20:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 04:20:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 04:20:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-21 04:20:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,176 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-07-21 04:20:39,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:20:39,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162050844] [2022-07-21 04:20:39,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162050844] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:20:39,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471120342] [2022-07-21 04:20:39,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:39,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:20:39,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:20:39,179 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) [2022-07-21 04:20:39,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 04:20:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:39,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 1603 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:20:39,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:20:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-21 04:20:39,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:20:39,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471120342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:20:39,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:20:39,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-21 04:20:39,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102563886] [2022-07-21 04:20:39,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:20:39,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:20:39,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:20:39,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:20:39,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:20:39,501 INFO L87 Difference]: Start difference. First operand 5376 states and 8517 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 04:20:40,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:20:40,310 INFO L93 Difference]: Finished difference Result 10908 states and 17508 transitions. [2022-07-21 04:20:40,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:20:40,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 178 [2022-07-21 04:20:40,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:20:40,329 INFO L225 Difference]: With dead ends: 10908 [2022-07-21 04:20:40,329 INFO L226 Difference]: Without dead ends: 5610 [2022-07-21 04:20:40,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:20:40,349 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 213 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2430 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 [2022-07-21 04:20:40,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2430 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:20:40,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-07-21 04:20:40,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5610. [2022-07-21 04:20:40,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5610 states, 4259 states have (on average 1.5402676684667762) internal successors, (6560), 4411 states have internal predecessors, (6560), 1031 states have call successors, (1031), 267 states have call predecessors, (1031), 319 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-21 04:20:41,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5610 states to 5610 states and 8955 transitions. [2022-07-21 04:20:41,023 INFO L78 Accepts]: Start accepts. Automaton has 5610 states and 8955 transitions. Word has length 178 [2022-07-21 04:20:41,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:20:41,023 INFO L495 AbstractCegarLoop]: Abstraction has 5610 states and 8955 transitions. [2022-07-21 04:20:41,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 04:20:41,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5610 states and 8955 transitions. [2022-07-21 04:20:41,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-21 04:20:41,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:20:41,029 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:20:41,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-21 04:20:41,254 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,SelfDestructingSolverStorable28 [2022-07-21 04:20:41,254 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:20:41,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:20:41,254 INFO L85 PathProgramCache]: Analyzing trace with hash 905496303, now seen corresponding path program 1 times [2022-07-21 04:20:41,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:20:41,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681325836] [2022-07-21 04:20:41,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:41,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:20:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:20:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:20:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:20:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:20:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:20:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:20:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:20:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:20:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:20:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 04:20:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-21 04:20:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 04:20:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 04:20:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,630 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-07-21 04:20:41,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:20:41,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681325836] [2022-07-21 04:20:41,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681325836] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:20:41,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951982343] [2022-07-21 04:20:41,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:41,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:20:41,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:20:41,636 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) [2022-07-21 04:20:41,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-21 04:20:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:41,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 1608 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:20:41,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:20:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-21 04:20:41,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:20:41,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951982343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:20:41,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:20:41,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-21 04:20:41,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618316294] [2022-07-21 04:20:41,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:20:41,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:20:41,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:20:41,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:20:41,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:20:41,922 INFO L87 Difference]: Start difference. First operand 5610 states and 8955 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 04:20:42,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:20:42,671 INFO L93 Difference]: Finished difference Result 11376 states and 18372 transitions. [2022-07-21 04:20:42,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:20:42,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 183 [2022-07-21 04:20:42,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:20:42,693 INFO L225 Difference]: With dead ends: 11376 [2022-07-21 04:20:42,693 INFO L226 Difference]: Without dead ends: 5844 [2022-07-21 04:20:42,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:20:42,709 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 211 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2430 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 [2022-07-21 04:20:42,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2430 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:20:42,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5844 states. [2022-07-21 04:20:43,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5844 to 5844. [2022-07-21 04:20:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5844 states, 4487 states have (on average 1.559616670381101) internal successors, (6998), 4639 states have internal predecessors, (6998), 1031 states have call successors, (1031), 273 states have call predecessors, (1031), 325 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-21 04:20:43,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5844 states to 5844 states and 9393 transitions. [2022-07-21 04:20:43,429 INFO L78 Accepts]: Start accepts. Automaton has 5844 states and 9393 transitions. Word has length 183 [2022-07-21 04:20:43,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:20:43,429 INFO L495 AbstractCegarLoop]: Abstraction has 5844 states and 9393 transitions. [2022-07-21 04:20:43,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 04:20:43,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5844 states and 9393 transitions. [2022-07-21 04:20:43,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 04:20:43,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:20:43,433 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:20:43,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-21 04:20:43,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:20:43,634 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:20:43,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:20:43,634 INFO L85 PathProgramCache]: Analyzing trace with hash 272185695, now seen corresponding path program 1 times [2022-07-21 04:20:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:20:43,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937631175] [2022-07-21 04:20:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:43,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:20:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:20:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:20:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:20:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:20:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:20:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:20:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:20:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:20:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:20:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:20:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 04:20:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 04:20:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 04:20:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:43,953 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-21 04:20:43,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:20:43,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937631175] [2022-07-21 04:20:43,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937631175] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:20:43,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351724961] [2022-07-21 04:20:43,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:43,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:20:43,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:20:43,956 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) [2022-07-21 04:20:43,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-21 04:20:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:44,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1612 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:20:44,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:20:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:20:44,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:20:44,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351724961] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:20:44,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:20:44,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-21 04:20:44,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034605650] [2022-07-21 04:20:44,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:20:44,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:20:44,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:20:44,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:20:44,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:20:44,282 INFO L87 Difference]: Start difference. First operand 5844 states and 9393 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 04:20:44,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:20:44,984 INFO L93 Difference]: Finished difference Result 11844 states and 19236 transitions. [2022-07-21 04:20:44,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:20:44,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 187 [2022-07-21 04:20:44,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:20:45,009 INFO L225 Difference]: With dead ends: 11844 [2022-07-21 04:20:45,009 INFO L226 Difference]: Without dead ends: 6078 [2022-07-21 04:20:45,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:20:45,027 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 209 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2430 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 [2022-07-21 04:20:45,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2430 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:20:45,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6078 states. [2022-07-21 04:20:45,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6078 to 6078. [2022-07-21 04:20:45,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6078 states, 4715 states have (on average 1.5770943796394485) internal successors, (7436), 4867 states have internal predecessors, (7436), 1031 states have call successors, (1031), 279 states have call predecessors, (1031), 331 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-21 04:20:45,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6078 states to 6078 states and 9831 transitions. [2022-07-21 04:20:45,729 INFO L78 Accepts]: Start accepts. Automaton has 6078 states and 9831 transitions. Word has length 187 [2022-07-21 04:20:45,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:20:45,730 INFO L495 AbstractCegarLoop]: Abstraction has 6078 states and 9831 transitions. [2022-07-21 04:20:45,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 04:20:45,730 INFO L276 IsEmpty]: Start isEmpty. Operand 6078 states and 9831 transitions. [2022-07-21 04:20:45,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-21 04:20:45,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:20:45,735 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:20:45,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-21 04:20:45,936 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,SelfDestructingSolverStorable30 [2022-07-21 04:20:45,936 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:20:45,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:20:45,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1232201702, now seen corresponding path program 1 times [2022-07-21 04:20:45,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:20:45,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450865483] [2022-07-21 04:20:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:45,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:20:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:20:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:20:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:20:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:20:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:20:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:20:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:20:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:20:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:20:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:20:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-21 04:20:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 04:20:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 04:20:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-21 04:20:46,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:20:46,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450865483] [2022-07-21 04:20:46,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450865483] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:20:46,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388644457] [2022-07-21 04:20:46,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:46,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:20:46,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:20:46,280 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) [2022-07-21 04:20:46,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-21 04:20:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:46,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1615 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:20:46,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:20:46,560 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-21 04:20:46,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:20:46,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388644457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:20:46,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:20:46,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-21 04:20:46,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884066076] [2022-07-21 04:20:46,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:20:46,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:20:46,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:20:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:20:46,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:20:46,564 INFO L87 Difference]: Start difference. First operand 6078 states and 9831 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 04:20:47,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:20:47,199 INFO L93 Difference]: Finished difference Result 12312 states and 20100 transitions. [2022-07-21 04:20:47,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:20:47,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 190 [2022-07-21 04:20:47,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:20:47,219 INFO L225 Difference]: With dead ends: 12312 [2022-07-21 04:20:47,219 INFO L226 Difference]: Without dead ends: 6312 [2022-07-21 04:20:47,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:20:47,238 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 207 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2430 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 [2022-07-21 04:20:47,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2430 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:20:47,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6312 states. [2022-07-21 04:20:47,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6312 to 6312. [2022-07-21 04:20:47,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6312 states, 4943 states have (on average 1.5929597410479466) internal successors, (7874), 5095 states have internal predecessors, (7874), 1031 states have call successors, (1031), 285 states have call predecessors, (1031), 337 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-21 04:20:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6312 states to 6312 states and 10269 transitions. [2022-07-21 04:20:47,933 INFO L78 Accepts]: Start accepts. Automaton has 6312 states and 10269 transitions. Word has length 190 [2022-07-21 04:20:47,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:20:47,933 INFO L495 AbstractCegarLoop]: Abstraction has 6312 states and 10269 transitions. [2022-07-21 04:20:47,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 04:20:47,934 INFO L276 IsEmpty]: Start isEmpty. Operand 6312 states and 10269 transitions. [2022-07-21 04:20:47,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-21 04:20:47,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:20:47,940 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:20:47,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-21 04:20:48,147 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,SelfDestructingSolverStorable31 [2022-07-21 04:20:48,148 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:20:48,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:20:48,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1847695126, now seen corresponding path program 1 times [2022-07-21 04:20:48,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:20:48,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893228608] [2022-07-21 04:20:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:20:48,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:20:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:20:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:20:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:20:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:20:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:20:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:20:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:20:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:20:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:20:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:20:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:20:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:20:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 04:20:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:20:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 04:20:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 04:20:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:20:48,481 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-21 04:20:48,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:20:48,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893228608] [2022-07-21 04:20:48,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893228608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:20:48,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:20:48,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 04:20:48,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60289241] [2022-07-21 04:20:48,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:20:48,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 04:20:48,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:20:48,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 04:20:48,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:20:48,483 INFO L87 Difference]: Start difference. First operand 6312 states and 10269 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-21 04:20:59,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:20:59,004 INFO L93 Difference]: Finished difference Result 23900 states and 40902 transitions. [2022-07-21 04:20:59,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 04:20:59,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 192 [2022-07-21 04:20:59,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:20:59,071 INFO L225 Difference]: With dead ends: 23900 [2022-07-21 04:20:59,071 INFO L226 Difference]: Without dead ends: 17570 [2022-07-21 04:20:59,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=134, Invalid=246, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:20:59,097 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 3723 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 4647 mSolverCounterSat, 1599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 6246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1599 IncrementalHoareTripleChecker+Valid, 4647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:20:59,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3915 Valid, 2407 Invalid, 6246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1599 Valid, 4647 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-07-21 04:20:59,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17570 states. [2022-07-21 04:21:00,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17570 to 13220. [2022-07-21 04:21:00,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13220 states, 10240 states have (on average 1.55810546875) internal successors, (15955), 10587 states have internal predecessors, (15955), 2268 states have call successors, (2268), 555 states have call predecessors, (2268), 711 states have return successors, (3047), 2251 states have call predecessors, (3047), 2252 states have call successors, (3047) [2022-07-21 04:21:00,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13220 states to 13220 states and 21270 transitions. [2022-07-21 04:21:00,575 INFO L78 Accepts]: Start accepts. Automaton has 13220 states and 21270 transitions. Word has length 192 [2022-07-21 04:21:00,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:21:00,576 INFO L495 AbstractCegarLoop]: Abstraction has 13220 states and 21270 transitions. [2022-07-21 04:21:00,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-21 04:21:00,576 INFO L276 IsEmpty]: Start isEmpty. Operand 13220 states and 21270 transitions. [2022-07-21 04:21:00,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-21 04:21:00,580 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:21:00,580 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:21:00,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-21 04:21:00,581 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:21:00,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:21:00,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2052670661, now seen corresponding path program 1 times [2022-07-21 04:21:00,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:21:00,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434697510] [2022-07-21 04:21:00,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:00,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:21:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:00,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:00,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:21:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:00,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:21:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:00,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:00,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:00,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:00,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:00,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 04:21:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 04:21:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 04:21:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-07-21 04:21:01,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:21:01,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434697510] [2022-07-21 04:21:01,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434697510] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:21:01,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895459026] [2022-07-21 04:21:01,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:01,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:21:01,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:21:01,084 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) [2022-07-21 04:21:01,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-21 04:21:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:01,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 37 conjunts are in the unsatisfiable core [2022-07-21 04:21:01,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:21:01,566 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-21 04:21:01,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:21:01,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895459026] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:21:01,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:21:01,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2022-07-21 04:21:01,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976457154] [2022-07-21 04:21:01,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:21:01,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:21:01,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:21:01,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:21:01,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-07-21 04:21:01,568 INFO L87 Difference]: Start difference. First operand 13220 states and 21270 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 7 states have internal predecessors, (129), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-21 04:21:06,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:21:06,957 INFO L93 Difference]: Finished difference Result 41627 states and 68412 transitions. [2022-07-21 04:21:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 04:21:06,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 7 states have internal predecessors, (129), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 192 [2022-07-21 04:21:06,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:21:07,054 INFO L225 Difference]: With dead ends: 41627 [2022-07-21 04:21:07,055 INFO L226 Difference]: Without dead ends: 17719 [2022-07-21 04:21:07,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-07-21 04:21:07,133 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 1967 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 4446 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 4987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 4446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:21:07,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 2983 Invalid, 4987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 4446 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-21 04:21:07,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17719 states. [2022-07-21 04:21:08,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17719 to 17254. [2022-07-21 04:21:08,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17254 states, 13302 states have (on average 1.5559314388813712) internal successors, (20697), 13804 states have internal predecessors, (20697), 2979 states have call successors, (2979), 729 states have call predecessors, (2979), 972 states have return successors, (4065), 2962 states have call predecessors, (4065), 2963 states have call successors, (4065) [2022-07-21 04:21:08,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17254 states to 17254 states and 27741 transitions. [2022-07-21 04:21:08,939 INFO L78 Accepts]: Start accepts. Automaton has 17254 states and 27741 transitions. Word has length 192 [2022-07-21 04:21:08,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:21:08,939 INFO L495 AbstractCegarLoop]: Abstraction has 17254 states and 27741 transitions. [2022-07-21 04:21:08,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 7 states have internal predecessors, (129), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-21 04:21:08,939 INFO L276 IsEmpty]: Start isEmpty. Operand 17254 states and 27741 transitions. [2022-07-21 04:21:08,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-21 04:21:08,948 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:21:08,948 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:21:08,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-21 04:21:09,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-07-21 04:21:09,160 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:21:09,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:21:09,160 INFO L85 PathProgramCache]: Analyzing trace with hash 748385493, now seen corresponding path program 1 times [2022-07-21 04:21:09,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:21:09,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867492416] [2022-07-21 04:21:09,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:09,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:21:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:21:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:21:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 04:21:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 04:21:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 04:21:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-21 04:21:09,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:21:09,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867492416] [2022-07-21 04:21:09,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867492416] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:21:09,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:21:09,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:21:09,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721255100] [2022-07-21 04:21:09,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:21:09,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:21:09,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:21:09,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:21:09,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:21:09,456 INFO L87 Difference]: Start difference. First operand 17254 states and 27741 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:21:16,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:21:16,613 INFO L93 Difference]: Finished difference Result 39125 states and 64610 transitions. [2022-07-21 04:21:16,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:21:16,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 192 [2022-07-21 04:21:16,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:21:16,713 INFO L225 Difference]: With dead ends: 39125 [2022-07-21 04:21:16,714 INFO L226 Difference]: Without dead ends: 21821 [2022-07-21 04:21:16,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:21:16,767 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 861 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 2539 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:21:16,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 1924 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 2539 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-21 04:21:16,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21821 states. [2022-07-21 04:21:18,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21821 to 17276. [2022-07-21 04:21:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17276 states, 13324 states have (on average 1.5517862503752626) internal successors, (20676), 13826 states have internal predecessors, (20676), 2979 states have call successors, (2979), 729 states have call predecessors, (2979), 972 states have return successors, (4065), 2962 states have call predecessors, (4065), 2963 states have call successors, (4065) [2022-07-21 04:21:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17276 states to 17276 states and 27720 transitions. [2022-07-21 04:21:18,896 INFO L78 Accepts]: Start accepts. Automaton has 17276 states and 27720 transitions. Word has length 192 [2022-07-21 04:21:18,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:21:18,896 INFO L495 AbstractCegarLoop]: Abstraction has 17276 states and 27720 transitions. [2022-07-21 04:21:18,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:21:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 17276 states and 27720 transitions. [2022-07-21 04:21:18,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-21 04:21:18,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:21:18,909 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:21:18,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-21 04:21:18,910 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:21:18,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:21:18,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1449735145, now seen corresponding path program 1 times [2022-07-21 04:21:18,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:21:18,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696314473] [2022-07-21 04:21:18,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:18,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:21:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:21:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:21:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 04:21:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 04:21:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 04:21:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 04:21:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,332 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-07-21 04:21:19,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:21:19,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696314473] [2022-07-21 04:21:19,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696314473] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:21:19,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586122128] [2022-07-21 04:21:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:19,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:21:19,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:21:19,336 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) [2022-07-21 04:21:19,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-21 04:21:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:19,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 04:21:19,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:21:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-21 04:21:19,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:21:19,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586122128] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:21:19,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:21:19,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 19 [2022-07-21 04:21:19,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27324433] [2022-07-21 04:21:19,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:21:19,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:21:19,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:21:19,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:21:19,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-07-21 04:21:19,632 INFO L87 Difference]: Start difference. First operand 17276 states and 27720 transitions. Second operand has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 04:21:20,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:21:20,793 INFO L93 Difference]: Finished difference Result 27338 states and 43849 transitions. [2022-07-21 04:21:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 04:21:20,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 198 [2022-07-21 04:21:20,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:21:20,832 INFO L225 Difference]: With dead ends: 27338 [2022-07-21 04:21:20,832 INFO L226 Difference]: Without dead ends: 9777 [2022-07-21 04:21:20,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:21:20,885 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 45 mSDsluCounter, 4296 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5170 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:21:20,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5170 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:21:20,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9777 states. [2022-07-21 04:21:21,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 9777. [2022-07-21 04:21:22,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9777 states, 7665 states have (on average 1.565818656229615) internal successors, (12002), 7947 states have internal predecessors, (12002), 1557 states have call successors, (1557), 441 states have call predecessors, (1557), 554 states have return successors, (2026), 1508 states have call predecessors, (2026), 1549 states have call successors, (2026) [2022-07-21 04:21:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9777 states to 9777 states and 15585 transitions. [2022-07-21 04:21:22,032 INFO L78 Accepts]: Start accepts. Automaton has 9777 states and 15585 transitions. Word has length 198 [2022-07-21 04:21:22,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:21:22,032 INFO L495 AbstractCegarLoop]: Abstraction has 9777 states and 15585 transitions. [2022-07-21 04:21:22,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 04:21:22,032 INFO L276 IsEmpty]: Start isEmpty. Operand 9777 states and 15585 transitions. [2022-07-21 04:21:22,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-07-21 04:21:22,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:21:22,041 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:21:22,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-21 04:21:22,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:21:22,242 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:21:22,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:21:22,242 INFO L85 PathProgramCache]: Analyzing trace with hash -166965064, now seen corresponding path program 1 times [2022-07-21 04:21:22,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:21:22,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613561563] [2022-07-21 04:21:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:22,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:21:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:21:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:21:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 04:21:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-21 04:21:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 04:21:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:21:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 04:21:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:21:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:21:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 04:21:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:21:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:21:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 04:21:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 04:21:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2022-07-21 04:21:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-07-21 04:21:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-07-21 04:21:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-07-21 04:21:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2022-07-21 04:21:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:22,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 88 proven. 137 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2022-07-21 04:21:22,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:21:22,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613561563] [2022-07-21 04:21:22,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613561563] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:21:22,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348677708] [2022-07-21 04:21:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:22,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:21:22,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:21:22,989 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) [2022-07-21 04:21:22,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-21 04:21:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:23,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 4087 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:21:23,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:21:23,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 690 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-07-21 04:21:23,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:21:23,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348677708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:21:23,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:21:23,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-21 04:21:23,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820307364] [2022-07-21 04:21:23,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:21:23,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:21:23,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:21:23,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:21:23,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:21:23,658 INFO L87 Difference]: Start difference. First operand 9777 states and 15585 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-21 04:21:24,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:21:24,865 INFO L93 Difference]: Finished difference Result 19572 states and 31517 transitions. [2022-07-21 04:21:24,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:21:24,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 554 [2022-07-21 04:21:24,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:21:24,900 INFO L225 Difference]: With dead ends: 19572 [2022-07-21 04:21:24,900 INFO L226 Difference]: Without dead ends: 9867 [2022-07-21 04:21:24,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 673 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-21 04:21:24,930 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 38 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:21:24,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2519 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:21:24,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9867 states. [2022-07-21 04:21:26,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9867 to 9867. [2022-07-21 04:21:26,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9867 states, 7745 states have (on average 1.5677211103938025) internal successors, (12142), 8027 states have internal predecessors, (12142), 1557 states have call successors, (1557), 451 states have call predecessors, (1557), 564 states have return successors, (2026), 1508 states have call predecessors, (2026), 1549 states have call successors, (2026) [2022-07-21 04:21:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9867 states to 9867 states and 15725 transitions. [2022-07-21 04:21:26,071 INFO L78 Accepts]: Start accepts. Automaton has 9867 states and 15725 transitions. Word has length 554 [2022-07-21 04:21:26,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:21:26,071 INFO L495 AbstractCegarLoop]: Abstraction has 9867 states and 15725 transitions. [2022-07-21 04:21:26,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-21 04:21:26,072 INFO L276 IsEmpty]: Start isEmpty. Operand 9867 states and 15725 transitions. [2022-07-21 04:21:26,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-07-21 04:21:26,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:21:26,081 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:21:26,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-21 04:21:26,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-07-21 04:21:26,282 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:21:26,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:21:26,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1640161242, now seen corresponding path program 1 times [2022-07-21 04:21:26,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:21:26,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264779967] [2022-07-21 04:21:26,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:26,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:21:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:21:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:21:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 04:21:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-21 04:21:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:21:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:21:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 04:21:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:21:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:21:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:21:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:21:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:21:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:21:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 04:21:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-21 04:21:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2022-07-21 04:21:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2022-07-21 04:21:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2022-07-21 04:21:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-07-21 04:21:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:26,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 90 proven. 136 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2022-07-21 04:21:26,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:21:26,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264779967] [2022-07-21 04:21:26,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264779967] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:21:26,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192866518] [2022-07-21 04:21:26,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:26,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:21:26,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:21:26,964 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) [2022-07-21 04:21:26,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-21 04:21:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:27,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 4088 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:21:27,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:21:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-21 04:21:27,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:21:27,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192866518] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:21:27,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:21:27,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-21 04:21:27,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495763447] [2022-07-21 04:21:27,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:21:27,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:21:27,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:21:27,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:21:27,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:21:27,506 INFO L87 Difference]: Start difference. First operand 9867 states and 15725 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-21 04:21:28,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:21:28,575 INFO L93 Difference]: Finished difference Result 19752 states and 31757 transitions. [2022-07-21 04:21:28,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:21:28,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 555 [2022-07-21 04:21:28,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:21:28,612 INFO L225 Difference]: With dead ends: 19752 [2022-07-21 04:21:28,613 INFO L226 Difference]: Without dead ends: 9957 [2022-07-21 04:21:28,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 673 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-21 04:21:28,641 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 36 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:21:28,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2519 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:21:28,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9957 states. [2022-07-21 04:21:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9957 to 9957. [2022-07-21 04:21:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9957 states, 7825 states have (on average 1.5695846645367413) internal successors, (12282), 8107 states have internal predecessors, (12282), 1557 states have call successors, (1557), 461 states have call predecessors, (1557), 574 states have return successors, (2026), 1508 states have call predecessors, (2026), 1549 states have call successors, (2026) [2022-07-21 04:21:29,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9957 states to 9957 states and 15865 transitions. [2022-07-21 04:21:29,587 INFO L78 Accepts]: Start accepts. Automaton has 9957 states and 15865 transitions. Word has length 555 [2022-07-21 04:21:29,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:21:29,587 INFO L495 AbstractCegarLoop]: Abstraction has 9957 states and 15865 transitions. [2022-07-21 04:21:29,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-21 04:21:29,588 INFO L276 IsEmpty]: Start isEmpty. Operand 9957 states and 15865 transitions. [2022-07-21 04:21:29,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-07-21 04:21:29,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:21:29,597 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:21:29,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-07-21 04:21:29,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-07-21 04:21:29,812 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:21:29,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:21:29,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1653173590, now seen corresponding path program 1 times [2022-07-21 04:21:29,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:21:29,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560235607] [2022-07-21 04:21:29,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:29,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:21:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:29,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:21:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:21:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 04:21:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-21 04:21:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:21:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:21:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 04:21:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:21:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:21:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 04:21:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:21:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 04:21:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 04:21:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 04:21:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-07-21 04:21:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-07-21 04:21:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-07-21 04:21:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-07-21 04:21:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2022-07-21 04:21:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 121 proven. 138 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2022-07-21 04:21:30,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:21:30,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560235607] [2022-07-21 04:21:30,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560235607] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:21:30,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389489724] [2022-07-21 04:21:30,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:30,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:21:30,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:21:30,500 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:21:30,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-21 04:21:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:30,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 4089 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-21 04:21:30,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:21:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 711 proven. 0 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2022-07-21 04:21:31,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:21:31,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389489724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:21:31,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:21:31,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21] total 27 [2022-07-21 04:21:31,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936359667] [2022-07-21 04:21:31,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:21:31,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:21:31,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:21:31,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:21:31,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2022-07-21 04:21:31,483 INFO L87 Difference]: Start difference. First operand 9957 states and 15865 transitions. Second operand has 9 states, 9 states have (on average 25.88888888888889) internal successors, (233), 8 states have internal predecessors, (233), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-07-21 04:21:38,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:21:38,816 INFO L93 Difference]: Finished difference Result 37045 states and 61283 transitions. [2022-07-21 04:21:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 04:21:38,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 25.88888888888889) internal successors, (233), 8 states have internal predecessors, (233), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) Word has length 556 [2022-07-21 04:21:38,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:21:38,898 INFO L225 Difference]: With dead ends: 37045 [2022-07-21 04:21:38,898 INFO L226 Difference]: Without dead ends: 27143 [2022-07-21 04:21:38,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 676 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=1059, Unknown=0, NotChecked=0, Total=1190 [2022-07-21 04:21:38,929 INFO L413 NwaCegarLoop]: 1425 mSDtfsCounter, 2488 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 8315 mSolverCounterSat, 897 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2712 SdHoareTripleChecker+Valid, 3525 SdHoareTripleChecker+Invalid, 9212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 897 IncrementalHoareTripleChecker+Valid, 8315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:21:38,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2712 Valid, 3525 Invalid, 9212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [897 Valid, 8315 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-21 04:21:38,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27143 states. [2022-07-21 04:21:41,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27143 to 24285. [2022-07-21 04:21:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24285 states, 19103 states have (on average 1.5628958802282364) internal successors, (29856), 19781 states have internal predecessors, (29856), 3803 states have call successors, (3803), 1160 states have call predecessors, (3803), 1378 states have return successors, (5490), 3698 states have call predecessors, (5490), 3784 states have call successors, (5490) [2022-07-21 04:21:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24285 states to 24285 states and 39149 transitions. [2022-07-21 04:21:41,446 INFO L78 Accepts]: Start accepts. Automaton has 24285 states and 39149 transitions. Word has length 556 [2022-07-21 04:21:41,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:21:41,447 INFO L495 AbstractCegarLoop]: Abstraction has 24285 states and 39149 transitions. [2022-07-21 04:21:41,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.88888888888889) internal successors, (233), 8 states have internal predecessors, (233), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-07-21 04:21:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 24285 states and 39149 transitions. [2022-07-21 04:21:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-07-21 04:21:41,460 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:21:41,460 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:21:41,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-07-21 04:21:41,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-07-21 04:21:41,676 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:21:41,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:21:41,676 INFO L85 PathProgramCache]: Analyzing trace with hash -734679930, now seen corresponding path program 1 times [2022-07-21 04:21:41,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:21:41,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755431063] [2022-07-21 04:21:41,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:41,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:21:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:41,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:41,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:21:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:41,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:21:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 04:21:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-21 04:21:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:21:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 04:21:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 04:21:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:21:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:21:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 04:21:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:21:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 04:21:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 04:21:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 04:21:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-07-21 04:21:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-07-21 04:21:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-07-21 04:21:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-07-21 04:21:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2022-07-21 04:21:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 90 proven. 136 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2022-07-21 04:21:42,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:21:42,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755431063] [2022-07-21 04:21:42,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755431063] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:21:42,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217427691] [2022-07-21 04:21:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:42,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:21:42,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:21:42,412 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:21:42,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-21 04:21:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:42,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 4089 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:21:42,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:21:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-21 04:21:42,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:21:42,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217427691] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:21:42,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:21:42,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-21 04:21:42,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336696556] [2022-07-21 04:21:42,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:21:42,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:21:42,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:21:42,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:21:42,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:21:42,932 INFO L87 Difference]: Start difference. First operand 24285 states and 39149 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-21 04:21:45,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:21:45,545 INFO L93 Difference]: Finished difference Result 48362 states and 78473 transitions. [2022-07-21 04:21:45,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:21:45,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 556 [2022-07-21 04:21:45,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:21:45,659 INFO L225 Difference]: With dead ends: 48362 [2022-07-21 04:21:45,659 INFO L226 Difference]: Without dead ends: 24580 [2022-07-21 04:21:45,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 674 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-21 04:21:45,722 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 34 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:21:45,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2519 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:21:45,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24580 states. [2022-07-21 04:21:48,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24580 to 24528. [2022-07-21 04:21:48,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24528 states, 19319 states have (on average 1.564987835809307) internal successors, (30234), 19997 states have internal predecessors, (30234), 3803 states have call successors, (3803), 1187 states have call predecessors, (3803), 1405 states have return successors, (5166), 3698 states have call predecessors, (5166), 3784 states have call successors, (5166) [2022-07-21 04:21:48,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24528 states to 24528 states and 39203 transitions. [2022-07-21 04:21:48,287 INFO L78 Accepts]: Start accepts. Automaton has 24528 states and 39203 transitions. Word has length 556 [2022-07-21 04:21:48,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:21:48,287 INFO L495 AbstractCegarLoop]: Abstraction has 24528 states and 39203 transitions. [2022-07-21 04:21:48,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-21 04:21:48,288 INFO L276 IsEmpty]: Start isEmpty. Operand 24528 states and 39203 transitions. [2022-07-21 04:21:48,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-07-21 04:21:48,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:21:48,304 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:21:48,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-07-21 04:21:48,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-07-21 04:21:48,532 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:21:48,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:21:48,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1775295270, now seen corresponding path program 1 times [2022-07-21 04:21:48,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:21:48,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808286505] [2022-07-21 04:21:48,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:48,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:21:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:21:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:21:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:48,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 04:21:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-21 04:21:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 04:21:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 04:21:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 04:21:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:21:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:21:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:21:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:21:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:21:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:21:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 04:21:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-21 04:21:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2022-07-21 04:21:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2022-07-21 04:21:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2022-07-21 04:21:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-07-21 04:21:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 94 proven. 134 refuted. 0 times theorem prover too weak. 1255 trivial. 0 not checked. [2022-07-21 04:21:49,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:21:49,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808286505] [2022-07-21 04:21:49,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808286505] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:21:49,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529965589] [2022-07-21 04:21:49,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:49,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:21:49,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:21:49,173 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:21:49,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-21 04:21:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:49,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 4088 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 04:21:49,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:21:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 696 proven. 0 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2022-07-21 04:21:49,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:21:49,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529965589] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:21:49,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:21:49,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-21 04:21:49,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176245912] [2022-07-21 04:21:49,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:21:49,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:21:49,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:21:49,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:21:49,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:21:49,708 INFO L87 Difference]: Start difference. First operand 24528 states and 39203 transitions. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-21 04:21:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:21:52,335 INFO L93 Difference]: Finished difference Result 38540 states and 61947 transitions. [2022-07-21 04:21:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:21:52,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 555 [2022-07-21 04:21:52,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:21:52,431 INFO L225 Difference]: With dead ends: 38540 [2022-07-21 04:21:52,431 INFO L226 Difference]: Without dead ends: 24696 [2022-07-21 04:21:52,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 674 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-21 04:21:52,483 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 42 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:21:52,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2546 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:21:52,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24696 states. [2022-07-21 04:21:54,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24696 to 24696. [2022-07-21 04:21:54,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24696 states, 19459 states have (on average 1.565188344724806) internal successors, (30457), 20137 states have internal predecessors, (30457), 3817 states have call successors, (3817), 1201 states have call predecessors, (3817), 1419 states have return successors, (5180), 3712 states have call predecessors, (5180), 3798 states have call successors, (5180) [2022-07-21 04:21:55,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24696 states to 24696 states and 39454 transitions. [2022-07-21 04:21:55,217 INFO L78 Accepts]: Start accepts. Automaton has 24696 states and 39454 transitions. Word has length 555 [2022-07-21 04:21:55,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:21:55,217 INFO L495 AbstractCegarLoop]: Abstraction has 24696 states and 39454 transitions. [2022-07-21 04:21:55,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-21 04:21:55,217 INFO L276 IsEmpty]: Start isEmpty. Operand 24696 states and 39454 transitions. [2022-07-21 04:21:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-07-21 04:21:55,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:21:55,228 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:21:55,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-21 04:21:55,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:21:55,429 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:21:55,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:21:55,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1919621652, now seen corresponding path program 1 times [2022-07-21 04:21:55,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:21:55,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205085986] [2022-07-21 04:21:55,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:55,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:21:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:55,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:55,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:21:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:55,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:21:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:55,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:55,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:55,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:55,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:55,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 04:21:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:21:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:21:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:21:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:21:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:21:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:21:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:21:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-21 04:21:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:21:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:21:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:21:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 04:21:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:21:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 04:21:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:21:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:21:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:21:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 04:21:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:21:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:21:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 04:21:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 04:21:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2022-07-21 04:21:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:21:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-07-21 04:21:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-07-21 04:21:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:21:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-07-21 04:21:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2022-07-21 04:21:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 154 proven. 119 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2022-07-21 04:21:56,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:21:56,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205085986] [2022-07-21 04:21:56,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205085986] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:21:56,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513370823] [2022-07-21 04:21:56,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:21:56,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:21:56,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:21:56,216 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:21:56,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-21 04:21:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:21:56,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 4087 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-21 04:21:56,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:21:57,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 210 proven. 15 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2022-07-21 04:21:57,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 04:21:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 1382 trivial. 0 not checked. [2022-07-21 04:21:59,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513370823] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 04:21:59,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-21 04:21:59,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16, 8] total 29 [2022-07-21 04:21:59,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363101274] [2022-07-21 04:21:59,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:21:59,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 04:21:59,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:21:59,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 04:21:59,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2022-07-21 04:21:59,253 INFO L87 Difference]: Start difference. First operand 24696 states and 39454 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 7 states have internal predecessors, (182), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) [2022-07-21 04:22:03,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:22:03,892 INFO L93 Difference]: Finished difference Result 42670 states and 68462 transitions. [2022-07-21 04:22:03,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:22:03,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 7 states have internal predecessors, (182), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) Word has length 554 [2022-07-21 04:22:03,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:22:04,023 INFO L225 Difference]: With dead ends: 42670 [2022-07-21 04:22:04,023 INFO L226 Difference]: Without dead ends: 32285 [2022-07-21 04:22:04,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1251 GetRequests, 1215 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=869, Unknown=0, NotChecked=0, Total=992 [2022-07-21 04:22:04,070 INFO L413 NwaCegarLoop]: 980 mSDtfsCounter, 1160 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 2378 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:22:04,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 2378 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 04:22:04,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32285 states. [2022-07-21 04:22:07,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32285 to 32010. [2022-07-21 04:22:07,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32010 states, 25392 states have (on average 1.5671471329552615) internal successors, (39793), 26205 states have internal predecessors, (39793), 4852 states have call successors, (4852), 1530 states have call predecessors, (4852), 1765 states have return successors, (6508), 4597 states have call predecessors, (6508), 4827 states have call successors, (6508) [2022-07-21 04:22:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32010 states to 32010 states and 51153 transitions. [2022-07-21 04:22:07,618 INFO L78 Accepts]: Start accepts. Automaton has 32010 states and 51153 transitions. Word has length 554 [2022-07-21 04:22:07,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:22:07,619 INFO L495 AbstractCegarLoop]: Abstraction has 32010 states and 51153 transitions. [2022-07-21 04:22:07,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 7 states have internal predecessors, (182), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) [2022-07-21 04:22:07,619 INFO L276 IsEmpty]: Start isEmpty. Operand 32010 states and 51153 transitions. [2022-07-21 04:22:07,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2022-07-21 04:22:07,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:22:07,637 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:22:07,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-21 04:22:07,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2022-07-21 04:22:07,838 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:22:07,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:22:07,839 INFO L85 PathProgramCache]: Analyzing trace with hash -2039393426, now seen corresponding path program 1 times [2022-07-21 04:22:07,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:22:07,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734555651] [2022-07-21 04:22:07,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:22:07,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:22:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:07,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:22:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:22:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:22:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:22:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:22:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:22:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:22:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:22:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:22:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:22:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:22:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:22:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:22:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:22:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 04:22:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:22:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:22:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:22:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:22:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:22:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:22:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:22:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:22:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:22:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:22:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:22:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-21 04:22:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:22:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:22:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:22:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:22:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:22:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:22:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 04:22:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:22:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:22:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:22:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 04:22:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:22:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:22:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 04:22:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 04:22:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 04:22:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 04:22:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2022-07-21 04:22:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:22:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-07-21 04:22:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-07-21 04:22:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2022-07-21 04:22:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2022-07-21 04:22:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 72 proven. 145 refuted. 0 times theorem prover too weak. 1278 trivial. 0 not checked. [2022-07-21 04:22:08,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:22:08,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734555651] [2022-07-21 04:22:08,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734555651] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:22:08,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599675628] [2022-07-21 04:22:08,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:22:08,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:22:08,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:22:08,612 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:22:08,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-21 04:22:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:09,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 4302 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:22:09,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:22:09,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-21 04:22:09,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:22:09,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599675628] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:22:09,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:22:09,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2022-07-21 04:22:09,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065418660] [2022-07-21 04:22:09,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:22:09,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:22:09,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:22:09,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:22:09,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-21 04:22:09,220 INFO L87 Difference]: Start difference. First operand 32010 states and 51153 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-21 04:22:12,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:22:12,877 INFO L93 Difference]: Finished difference Result 53922 states and 86997 transitions. [2022-07-21 04:22:12,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:22:12,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 570 [2022-07-21 04:22:12,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:22:12,982 INFO L225 Difference]: With dead ends: 53922 [2022-07-21 04:22:12,982 INFO L226 Difference]: Without dead ends: 33063 [2022-07-21 04:22:13,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 694 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-07-21 04:22:13,049 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 210 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:22:13,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2394 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 04:22:13,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33063 states. [2022-07-21 04:22:16,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33063 to 33063. [2022-07-21 04:22:16,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33063 states, 26391 states have (on average 1.5786442347770073) internal successors, (41662), 27204 states have internal predecessors, (41662), 4879 states have call successors, (4879), 1557 states have call predecessors, (4879), 1792 states have return successors, (6535), 4624 states have call predecessors, (6535), 4854 states have call successors, (6535) [2022-07-21 04:22:16,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33063 states to 33063 states and 53076 transitions. [2022-07-21 04:22:16,679 INFO L78 Accepts]: Start accepts. Automaton has 33063 states and 53076 transitions. Word has length 570 [2022-07-21 04:22:16,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:22:16,680 INFO L495 AbstractCegarLoop]: Abstraction has 33063 states and 53076 transitions. [2022-07-21 04:22:16,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-21 04:22:16,680 INFO L276 IsEmpty]: Start isEmpty. Operand 33063 states and 53076 transitions. [2022-07-21 04:22:16,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2022-07-21 04:22:16,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:22:16,697 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:22:16,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-21 04:22:16,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:22:16,897 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:22:16,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:22:16,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1113875659, now seen corresponding path program 1 times [2022-07-21 04:22:16,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:22:16,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637126070] [2022-07-21 04:22:16,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:22:16,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:22:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:22:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:22:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:22:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:22:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:22:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:22:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:22:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:22:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:22:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:22:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:22:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:22:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:22:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:22:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 04:22:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:22:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:22:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:22:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:22:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:22:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:22:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:22:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:22:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:22:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:22:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:22:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-21 04:22:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:22:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:22:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:22:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:22:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:22:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:22:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:22:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 04:22:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:22:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:22:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:22:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 04:22:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:22:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 04:22:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 04:22:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 04:22:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 04:22:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-07-21 04:22:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:22:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-07-21 04:22:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-07-21 04:22:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2022-07-21 04:22:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2022-07-21 04:22:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 66 proven. 148 refuted. 0 times theorem prover too weak. 1281 trivial. 0 not checked. [2022-07-21 04:22:17,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:22:17,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637126070] [2022-07-21 04:22:17,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637126070] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:22:17,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789310724] [2022-07-21 04:22:17,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:22:17,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:22:17,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:22:17,588 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:22:17,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-21 04:22:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:18,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 4304 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:22:18,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:22:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 971 trivial. 0 not checked. [2022-07-21 04:22:18,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:22:18,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789310724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:22:18,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:22:18,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2022-07-21 04:22:18,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804846865] [2022-07-21 04:22:18,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:22:18,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:22:18,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:22:18,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:22:18,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-21 04:22:18,169 INFO L87 Difference]: Start difference. First operand 33063 states and 53076 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-21 04:22:22,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:22:22,081 INFO L93 Difference]: Finished difference Result 55777 states and 90271 transitions. [2022-07-21 04:22:22,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:22:22,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 572 [2022-07-21 04:22:22,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:22:22,179 INFO L225 Difference]: With dead ends: 55777 [2022-07-21 04:22:22,180 INFO L226 Difference]: Without dead ends: 34701 [2022-07-21 04:22:22,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 696 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-07-21 04:22:22,232 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 208 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:22:22,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2394 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:22:22,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34701 states. [2022-07-21 04:22:25,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34701 to 34701. [2022-07-21 04:22:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34701 states, 27945 states have (on average 1.5963857577384148) internal successors, (44611), 28758 states have internal predecessors, (44611), 4921 states have call successors, (4921), 1599 states have call predecessors, (4921), 1834 states have return successors, (6577), 4666 states have call predecessors, (6577), 4896 states have call successors, (6577) [2022-07-21 04:22:25,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34701 states to 34701 states and 56109 transitions. [2022-07-21 04:22:25,985 INFO L78 Accepts]: Start accepts. Automaton has 34701 states and 56109 transitions. Word has length 572 [2022-07-21 04:22:25,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:22:25,986 INFO L495 AbstractCegarLoop]: Abstraction has 34701 states and 56109 transitions. [2022-07-21 04:22:25,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-21 04:22:25,986 INFO L276 IsEmpty]: Start isEmpty. Operand 34701 states and 56109 transitions. [2022-07-21 04:22:26,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2022-07-21 04:22:26,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:22:26,004 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:22:26,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-21 04:22:26,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:22:26,204 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:22:26,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:22:26,205 INFO L85 PathProgramCache]: Analyzing trace with hash -968119770, now seen corresponding path program 1 times [2022-07-21 04:22:26,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:22:26,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069252461] [2022-07-21 04:22:26,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:22:26,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:22:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:22:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:22:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:22:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:22:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:22:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:22:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:22:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:22:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:22:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:22:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:22:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:22:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:22:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:22:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 04:22:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:22:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:22:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:22:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:22:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:22:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:22:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:22:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:22:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:22:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:22:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:22:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-21 04:22:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:22:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:22:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:22:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:22:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:22:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:22:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:22:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:22:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:22:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 04:22:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:22:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:22:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:22:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 04:22:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:22:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 04:22:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-21 04:22:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2022-07-21 04:22:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:22:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-07-21 04:22:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2022-07-21 04:22:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:22:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2022-07-21 04:22:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-07-21 04:22:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 54 proven. 154 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2022-07-21 04:22:26,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:22:26,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069252461] [2022-07-21 04:22:26,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069252461] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:22:26,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635036007] [2022-07-21 04:22:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:22:26,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:22:26,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:22:26,892 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:22:26,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-21 04:22:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:22:27,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 4306 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:22:27,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:22:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2022-07-21 04:22:27,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:22:27,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635036007] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:22:27,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:22:27,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2022-07-21 04:22:27,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901162115] [2022-07-21 04:22:27,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:22:27,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:22:27,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:22:27,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:22:27,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-21 04:22:27,470 INFO L87 Difference]: Start difference. First operand 34701 states and 56109 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37)