./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec9_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_spec9_productSimulator.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 103200f2b8a63084e18f01e764726e643d8bd1fdb49b70f8e60a3d1bb82c2b32 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:38:01,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:38:01,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:38:01,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:38:01,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:38:01,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:38:01,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:38:01,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:38:01,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:38:01,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:38:01,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:38:01,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:38:01,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:38:01,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:38:01,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:38:01,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:38:01,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:38:01,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:38:01,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:38:01,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:38:01,664 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:38:01,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:38:01,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:38:01,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:38:01,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:38:01,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:38:01,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:38:01,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:38:01,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:38:01,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:38:01,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:38:01,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:38:01,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:38:01,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:38:01,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:38:01,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:38:01,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:38:01,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:38:01,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:38:01,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:38:01,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:38:01,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:38:01,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:38:01,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:38:01,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:38:01,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:38:01,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:38:01,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:38:01,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:38:01,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:38:01,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:38:01,720 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:38:01,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:38:01,721 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:38:01,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:38:01,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:38:01,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:38:01,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:38:01,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:38:01,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:38:01,721 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:38:01,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:38:01,722 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:38:01,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:38:01,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:38:01,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:38:01,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:38:01,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:38:01,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:38:01,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:38:01,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:38:01,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:38:01,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:38:01,723 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:38:01,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:38:01,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:38:01,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 103200f2b8a63084e18f01e764726e643d8bd1fdb49b70f8e60a3d1bb82c2b32 [2022-07-13 17:38:01,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:38:01,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:38:01,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:38:01,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:38:01,969 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:38:01,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec9_productSimulator.cil.c [2022-07-13 17:38:02,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f094320d/28a4327d84c94218bee5895587d612c1/FLAG858429a83 [2022-07-13 17:38:02,471 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:38:02,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_productSimulator.cil.c [2022-07-13 17:38:02,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f094320d/28a4327d84c94218bee5895587d612c1/FLAG858429a83 [2022-07-13 17:38:02,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f094320d/28a4327d84c94218bee5895587d612c1 [2022-07-13 17:38:02,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:38:02,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:38:02,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:38:02,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:38:02,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:38:02,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:38:02" (1/1) ... [2022-07-13 17:38:02,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b530ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:02, skipping insertion in model container [2022-07-13 17:38:02,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:38:02" (1/1) ... [2022-07-13 17:38:02,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:38:02,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:38:03,210 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_spec9_productSimulator.cil.c[36997,37010] [2022-07-13 17:38:03,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:38:03,329 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:38:03,383 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_spec9_productSimulator.cil.c[36997,37010] [2022-07-13 17:38:03,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:38:03,457 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:38:03,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03 WrapperNode [2022-07-13 17:38:03,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:38:03,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:38:03,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:38:03,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:38:03,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (1/1) ... [2022-07-13 17:38:03,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (1/1) ... [2022-07-13 17:38:03,586 INFO L137 Inliner]: procedures = 110, calls = 379, calls flagged for inlining = 32, calls inlined = 28, statements flattened = 1000 [2022-07-13 17:38:03,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:38:03,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:38:03,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:38:03,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:38:03,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (1/1) ... [2022-07-13 17:38:03,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (1/1) ... [2022-07-13 17:38:03,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (1/1) ... [2022-07-13 17:38:03,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (1/1) ... [2022-07-13 17:38:03,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (1/1) ... [2022-07-13 17:38:03,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (1/1) ... [2022-07-13 17:38:03,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (1/1) ... [2022-07-13 17:38:03,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:38:03,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:38:03,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:38:03,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:38:03,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (1/1) ... [2022-07-13 17:38:03,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:38:03,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:38:03,735 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) [2022-07-13 17:38:03,757 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 [2022-07-13 17:38:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-13 17:38:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-13 17:38:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-13 17:38:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-13 17:38:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-13 17:38:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-13 17:38:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__twothirdsfull [2022-07-13 17:38:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__twothirdsfull [2022-07-13 17:38:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-13 17:38:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-13 17:38:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__empty [2022-07-13 17:38:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__empty [2022-07-13 17:38:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-13 17:38:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-13 17:38:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-13 17:38:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-13 17:38:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-13 17:38:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-13 17:38:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__before__weight [2022-07-13 17:38:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__before__weight [2022-07-13 17:38:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-07-13 17:38:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-07-13 17:38:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-13 17:38:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-13 17:38:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-13 17:38:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-13 17:38:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:38:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-13 17:38:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-13 17:38:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-13 17:38:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-13 17:38:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-13 17:38:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-13 17:38:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__before__overloaded [2022-07-13 17:38:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__before__overloaded [2022-07-13 17:38:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-13 17:38:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-13 17:38:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-07-13 17:38:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-07-13 17:38:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-07-13 17:38:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-07-13 17:38:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-13 17:38:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-13 17:38:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__weight [2022-07-13 17:38:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__weight [2022-07-13 17:38:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__executivefloor [2022-07-13 17:38:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__executivefloor [2022-07-13 17:38:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2022-07-13 17:38:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2022-07-13 17:38:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-13 17:38:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-13 17:38:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__executivefloor [2022-07-13 17:38:03,782 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__executivefloor [2022-07-13 17:38:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-13 17:38:03,783 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-13 17:38:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-13 17:38:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-13 17:38:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-13 17:38:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-13 17:38:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-13 17:38:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-13 17:38:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2022-07-13 17:38:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2022-07-13 17:38:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:38:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2022-07-13 17:38:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2022-07-13 17:38:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-13 17:38:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-13 17:38:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2022-07-13 17:38:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2022-07-13 17:38:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:38:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:38:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-13 17:38:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-13 17:38:04,016 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:38:04,018 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:38:04,943 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:38:04,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:38:04,954 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 17:38:04,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:38:04 BoogieIcfgContainer [2022-07-13 17:38:04,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:38:04,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:38:04,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:38:04,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:38:04,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:38:02" (1/3) ... [2022-07-13 17:38:04,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3a1bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:38:04, skipping insertion in model container [2022-07-13 17:38:04,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:03" (2/3) ... [2022-07-13 17:38:04,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3a1bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:38:04, skipping insertion in model container [2022-07-13 17:38:04,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:38:04" (3/3) ... [2022-07-13 17:38:04,964 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec9_productSimulator.cil.c [2022-07-13 17:38:04,976 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:38:04,976 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:38:05,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:38:05,052 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@3e3c2c1a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@49d7a922 [2022-07-13 17:38:05,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:38:05,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 669 states, 509 states have (on average 1.6483300589390963) internal successors, (839), 536 states have internal predecessors, (839), 123 states have call successors, (123), 35 states have call predecessors, (123), 35 states have return successors, (123), 115 states have call predecessors, (123), 123 states have call successors, (123) [2022-07-13 17:38:05,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-13 17:38:05,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:05,084 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:38:05,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:05,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:05,089 INFO L85 PathProgramCache]: Analyzing trace with hash 109175043, now seen corresponding path program 1 times [2022-07-13 17:38:05,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:05,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353489453] [2022-07-13 17:38:05,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:05,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:38:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:38:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:38:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:38:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:38:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:38:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 17:38:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:38:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:05,955 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:38:05,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:05,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353489453] [2022-07-13 17:38:05,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353489453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:05,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:05,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:38:05,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531184484] [2022-07-13 17:38:05,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:05,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:38:05,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:05,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:38:05,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:38:05,992 INFO L87 Difference]: Start difference. First operand has 669 states, 509 states have (on average 1.6483300589390963) internal successors, (839), 536 states have internal predecessors, (839), 123 states have call successors, (123), 35 states have call predecessors, (123), 35 states have return successors, (123), 115 states have call predecessors, (123), 123 states have call successors, (123) Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:13,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:13,438 INFO L93 Difference]: Finished difference Result 1657 states and 2812 transitions. [2022-07-13 17:38:13,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 17:38:13,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2022-07-13 17:38:13,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:13,461 INFO L225 Difference]: With dead ends: 1657 [2022-07-13 17:38:13,461 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 17:38:13,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-07-13 17:38:13,474 INFO L413 NwaCegarLoop]: 1041 mSDtfsCounter, 1093 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 4813 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 5180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 4813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:13,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 2436 Invalid, 5180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [367 Valid, 4813 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-13 17:38:13,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 17:38:13,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 661. [2022-07-13 17:38:13,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 503 states have (on average 1.640159045725646) internal successors, (825), 528 states have internal predecessors, (825), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:38:13,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1066 transitions. [2022-07-13 17:38:13,661 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1066 transitions. Word has length 93 [2022-07-13 17:38:13,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:13,661 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1066 transitions. [2022-07-13 17:38:13,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1066 transitions. [2022-07-13 17:38:13,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 17:38:13,667 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:13,667 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:38:13,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 17:38:13,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:13,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:13,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1921289236, now seen corresponding path program 1 times [2022-07-13 17:38:13,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:13,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702830140] [2022-07-13 17:38:13,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:13,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:38:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:38:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:38:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:38:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:38:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:38:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:38:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:14,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:38:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:14,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:38:14,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:14,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702830140] [2022-07-13 17:38:14,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702830140] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:14,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:14,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:38:14,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287776820] [2022-07-13 17:38:14,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:14,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:38:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:38:14,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:38:14,014 INFO L87 Difference]: Start difference. First operand 661 states and 1066 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:19,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:19,828 INFO L93 Difference]: Finished difference Result 1620 states and 2744 transitions. [2022-07-13 17:38:19,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:38:19,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2022-07-13 17:38:19,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:19,839 INFO L225 Difference]: With dead ends: 1620 [2022-07-13 17:38:19,839 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 17:38:19,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:38:19,843 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 2170 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 3285 mSolverCounterSat, 762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 4047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 762 IncrementalHoareTripleChecker+Valid, 3285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:19,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2279 Valid, 2017 Invalid, 4047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [762 Valid, 3285 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-13 17:38:19,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 17:38:19,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 661. [2022-07-13 17:38:19,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 503 states have (on average 1.6381709741550696) internal successors, (824), 528 states have internal predecessors, (824), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:38:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1065 transitions. [2022-07-13 17:38:19,915 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1065 transitions. Word has length 96 [2022-07-13 17:38:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:19,915 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1065 transitions. [2022-07-13 17:38:19,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:19,916 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1065 transitions. [2022-07-13 17:38:19,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 17:38:19,918 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:19,918 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:38:19,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 17:38:19,919 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:19,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:19,919 INFO L85 PathProgramCache]: Analyzing trace with hash 661579003, now seen corresponding path program 1 times [2022-07-13 17:38:19,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:19,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960572878] [2022-07-13 17:38:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:19,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:38:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:38:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:19,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:38:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:38:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:38:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:38:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:38:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:38:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:38:20,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:20,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960572878] [2022-07-13 17:38:20,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960572878] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:20,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:20,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:38:20,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597009217] [2022-07-13 17:38:20,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:20,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:38:20,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:20,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:38:20,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:38:20,334 INFO L87 Difference]: Start difference. First operand 661 states and 1065 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:25,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:25,777 INFO L93 Difference]: Finished difference Result 1620 states and 2743 transitions. [2022-07-13 17:38:25,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:38:25,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 97 [2022-07-13 17:38:25,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:25,784 INFO L225 Difference]: With dead ends: 1620 [2022-07-13 17:38:25,784 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 17:38:25,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:38:25,788 INFO L413 NwaCegarLoop]: 1024 mSDtfsCounter, 1630 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 3382 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 3953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 3382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:25,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 2041 Invalid, 3953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 3382 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-07-13 17:38:25,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 17:38:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 661. [2022-07-13 17:38:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 503 states have (on average 1.636182902584493) internal successors, (823), 528 states have internal predecessors, (823), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:38:25,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1064 transitions. [2022-07-13 17:38:25,858 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1064 transitions. Word has length 97 [2022-07-13 17:38:25,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:25,859 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1064 transitions. [2022-07-13 17:38:25,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:25,859 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1064 transitions. [2022-07-13 17:38:25,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-13 17:38:25,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:25,861 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:38:25,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 17:38:25,861 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:25,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:25,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1256129032, now seen corresponding path program 1 times [2022-07-13 17:38:25,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:25,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894197626] [2022-07-13 17:38:25,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:25,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:25,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:38:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:38:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:38:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:38:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:25,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:38:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:26,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:38:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:26,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:38:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:26,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:26,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:26,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:38:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:38:26,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:26,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894197626] [2022-07-13 17:38:26,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894197626] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:26,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:26,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:38:26,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706185917] [2022-07-13 17:38:26,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:26,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:38:26,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:26,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:38:26,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:38:26,227 INFO L87 Difference]: Start difference. First operand 661 states and 1064 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:31,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:31,496 INFO L93 Difference]: Finished difference Result 1620 states and 2742 transitions. [2022-07-13 17:38:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:38:31,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 98 [2022-07-13 17:38:31,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:31,510 INFO L225 Difference]: With dead ends: 1620 [2022-07-13 17:38:31,510 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 17:38:31,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:38:31,514 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 2166 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 3304 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 4073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 3304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:31,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2271 Valid, 2006 Invalid, 4073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 3304 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-07-13 17:38:31,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 17:38:31,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 661. [2022-07-13 17:38:31,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 503 states have (on average 1.6341948310139165) internal successors, (822), 528 states have internal predecessors, (822), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:38:31,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1063 transitions. [2022-07-13 17:38:31,579 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1063 transitions. Word has length 98 [2022-07-13 17:38:31,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:31,580 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1063 transitions. [2022-07-13 17:38:31,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:31,580 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1063 transitions. [2022-07-13 17:38:31,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-13 17:38:31,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:31,582 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:38:31,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:38:31,583 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:31,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:31,583 INFO L85 PathProgramCache]: Analyzing trace with hash -2096932449, now seen corresponding path program 1 times [2022-07-13 17:38:31,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:31,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865090218] [2022-07-13 17:38:31,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:31,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:38:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:38:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:38:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:38:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:38:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-13 17:38:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:38:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:38:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:31,917 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:38:31,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:31,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865090218] [2022-07-13 17:38:31,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865090218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:31,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:31,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:38:31,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607391296] [2022-07-13 17:38:31,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:31,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:38:31,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:31,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:38:31,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:38:31,921 INFO L87 Difference]: Start difference. First operand 661 states and 1063 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:37,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:37,783 INFO L93 Difference]: Finished difference Result 1620 states and 2741 transitions. [2022-07-13 17:38:37,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:38:37,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 99 [2022-07-13 17:38:37,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:37,794 INFO L225 Difference]: With dead ends: 1620 [2022-07-13 17:38:37,794 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 17:38:37,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:38:37,802 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 1081 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 3622 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 3997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 3622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:37,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 2050 Invalid, 3997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 3622 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-13 17:38:37,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 17:38:37,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 661. [2022-07-13 17:38:37,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 503 states have (on average 1.63220675944334) internal successors, (821), 528 states have internal predecessors, (821), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:38:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1062 transitions. [2022-07-13 17:38:37,872 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1062 transitions. Word has length 99 [2022-07-13 17:38:37,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:37,873 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1062 transitions. [2022-07-13 17:38:37,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:37,874 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1062 transitions. [2022-07-13 17:38:37,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-13 17:38:37,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:37,876 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:38:37,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:38:37,876 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:37,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash 381536220, now seen corresponding path program 1 times [2022-07-13 17:38:37,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:37,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397027148] [2022-07-13 17:38:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:37,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:38:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:37,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:38:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:37,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:38:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:37,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:37,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:38:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:38,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:38:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:38,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-13 17:38:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:38,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:38:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:38,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:38,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:38,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:38:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:38,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:38,245 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:38:38,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:38,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397027148] [2022-07-13 17:38:38,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397027148] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:38,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:38,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:38:38,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128429467] [2022-07-13 17:38:38,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:38,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:38:38,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:38,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:38:38,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:38:38,247 INFO L87 Difference]: Start difference. First operand 661 states and 1062 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:43,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:43,426 INFO L93 Difference]: Finished difference Result 1620 states and 2740 transitions. [2022-07-13 17:38:43,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:38:43,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 100 [2022-07-13 17:38:43,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:43,432 INFO L225 Difference]: With dead ends: 1620 [2022-07-13 17:38:43,432 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 17:38:43,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:38:43,435 INFO L413 NwaCegarLoop]: 1016 mSDtfsCounter, 2160 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 3271 mSolverCounterSat, 774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 4045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 774 IncrementalHoareTripleChecker+Valid, 3271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:43,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2269 Valid, 1985 Invalid, 4045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [774 Valid, 3271 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-13 17:38:43,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 17:38:43,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 661. [2022-07-13 17:38:43,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 503 states have (on average 1.6302186878727634) internal successors, (820), 528 states have internal predecessors, (820), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:38:43,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1061 transitions. [2022-07-13 17:38:43,503 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1061 transitions. Word has length 100 [2022-07-13 17:38:43,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:43,503 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1061 transitions. [2022-07-13 17:38:43,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1061 transitions. [2022-07-13 17:38:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-13 17:38:43,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:43,505 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:38:43,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 17:38:43,506 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:43,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:43,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1616742845, now seen corresponding path program 1 times [2022-07-13 17:38:43,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:43,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849631376] [2022-07-13 17:38:43,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:43,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:38:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:38:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:38:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:38:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:38:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:38:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:38:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:38:43,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:43,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849631376] [2022-07-13 17:38:43,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849631376] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:43,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:43,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:38:43,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595428436] [2022-07-13 17:38:43,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:43,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:38:43,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:38:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:38:43,875 INFO L87 Difference]: Start difference. First operand 661 states and 1061 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:49,599 INFO L93 Difference]: Finished difference Result 1580 states and 2664 transitions. [2022-07-13 17:38:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:38:49,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2022-07-13 17:38:49,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:49,605 INFO L225 Difference]: With dead ends: 1580 [2022-07-13 17:38:49,605 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 17:38:49,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 17:38:49,608 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 1127 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 3590 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 4029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 3590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:49,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 2008 Invalid, 4029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 3590 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-13 17:38:49,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 17:38:49,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 661. [2022-07-13 17:38:49,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 503 states have (on average 1.6202783300198806) internal successors, (815), 528 states have internal predecessors, (815), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:38:49,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1056 transitions. [2022-07-13 17:38:49,677 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1056 transitions. Word has length 101 [2022-07-13 17:38:49,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:49,677 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1056 transitions. [2022-07-13 17:38:49,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1056 transitions. [2022-07-13 17:38:49,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-13 17:38:49,681 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:49,682 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:38:49,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 17:38:49,682 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:49,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:49,683 INFO L85 PathProgramCache]: Analyzing trace with hash -2068630596, now seen corresponding path program 1 times [2022-07-13 17:38:49,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:49,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663692053] [2022-07-13 17:38:49,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:49,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:38:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:38:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:38:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:38:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:38:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 17:38:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:49,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:50,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:38:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:50,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:50,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:38:50,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:50,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663692053] [2022-07-13 17:38:50,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663692053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:50,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:50,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:38:50,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508905069] [2022-07-13 17:38:50,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:50,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:38:50,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:50,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:38:50,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:38:50,019 INFO L87 Difference]: Start difference. First operand 661 states and 1056 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:55,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:55,790 INFO L93 Difference]: Finished difference Result 1580 states and 2659 transitions. [2022-07-13 17:38:55,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:38:55,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2022-07-13 17:38:55,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:55,795 INFO L225 Difference]: With dead ends: 1580 [2022-07-13 17:38:55,795 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 17:38:55,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 17:38:55,797 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 1126 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 3588 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 4004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 3588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:55,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 2006 Invalid, 4004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 3588 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-13 17:38:55,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 17:38:55,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 661. [2022-07-13 17:38:55,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 503 states have (on average 1.610337972166998) internal successors, (810), 528 states have internal predecessors, (810), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:38:55,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1051 transitions. [2022-07-13 17:38:55,867 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1051 transitions. Word has length 102 [2022-07-13 17:38:55,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:55,867 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1051 transitions. [2022-07-13 17:38:55,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:38:55,868 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1051 transitions. [2022-07-13 17:38:55,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 17:38:55,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:55,870 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:38:55,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 17:38:55,870 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:55,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:55,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1655656126, now seen corresponding path program 1 times [2022-07-13 17:38:55,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:55,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383061025] [2022-07-13 17:38:55,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:55,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:38:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:38:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:38:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:38:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:38:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 17:38:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:38:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:38:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:38:56,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:56,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383061025] [2022-07-13 17:38:56,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383061025] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:56,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:56,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:38:56,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714459373] [2022-07-13 17:38:56,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:56,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:38:56,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:56,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:38:56,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:38:56,201 INFO L87 Difference]: Start difference. First operand 661 states and 1051 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:01,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:01,352 INFO L93 Difference]: Finished difference Result 1580 states and 2654 transitions. [2022-07-13 17:39:01,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:39:01,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-07-13 17:39:01,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:01,357 INFO L225 Difference]: With dead ends: 1580 [2022-07-13 17:39:01,357 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 17:39:01,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 17:39:01,360 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 1665 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 3319 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 3939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 3319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:01,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 1974 Invalid, 3939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 3319 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-07-13 17:39:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 17:39:01,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 661. [2022-07-13 17:39:01,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 503 states have (on average 1.6003976143141152) internal successors, (805), 528 states have internal predecessors, (805), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:39:01,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1046 transitions. [2022-07-13 17:39:01,432 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1046 transitions. Word has length 103 [2022-07-13 17:39:01,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:01,433 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1046 transitions. [2022-07-13 17:39:01,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:01,433 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1046 transitions. [2022-07-13 17:39:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-13 17:39:01,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:01,435 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:39:01,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 17:39:01,436 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:01,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1697365335, now seen corresponding path program 1 times [2022-07-13 17:39:01,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:01,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561391970] [2022-07-13 17:39:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:01,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:39:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:39:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:39:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:39:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:39:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:39:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 17:39:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:39:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:39:01,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:01,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561391970] [2022-07-13 17:39:01,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561391970] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:01,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:01,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:39:01,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446925346] [2022-07-13 17:39:01,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:01,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:39:01,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:01,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:39:01,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:39:01,791 INFO L87 Difference]: Start difference. First operand 661 states and 1046 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:06,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:06,738 INFO L93 Difference]: Finished difference Result 1580 states and 2649 transitions. [2022-07-13 17:39:06,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:39:06,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2022-07-13 17:39:06,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:06,742 INFO L225 Difference]: With dead ends: 1580 [2022-07-13 17:39:06,743 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 17:39:06,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 17:39:06,745 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 2220 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 3177 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 3968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 3177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:06,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 1951 Invalid, 3968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 3177 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-13 17:39:06,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 17:39:06,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 661. [2022-07-13 17:39:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 503 states have (on average 1.5904572564612327) internal successors, (800), 528 states have internal predecessors, (800), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:39:06,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1041 transitions. [2022-07-13 17:39:06,815 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1041 transitions. Word has length 104 [2022-07-13 17:39:06,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:06,816 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1041 transitions. [2022-07-13 17:39:06,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:06,816 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1041 transitions. [2022-07-13 17:39:06,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-13 17:39:06,818 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:06,818 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:39:06,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 17:39:06,818 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:06,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:06,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1989669034, now seen corresponding path program 1 times [2022-07-13 17:39:06,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:06,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239189847] [2022-07-13 17:39:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:06,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:06,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:39:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:06,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:39:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:06,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:39:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:06,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:39:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:06,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:39:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:06,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:39:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:06,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 17:39:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:39:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,124 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:39:07,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:07,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239189847] [2022-07-13 17:39:07,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239189847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:07,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:07,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:39:07,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508451820] [2022-07-13 17:39:07,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:07,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:39:07,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:07,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:39:07,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:39:07,126 INFO L87 Difference]: Start difference. First operand 661 states and 1041 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:12,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:12,297 INFO L93 Difference]: Finished difference Result 1595 states and 2664 transitions. [2022-07-13 17:39:12,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 17:39:12,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2022-07-13 17:39:12,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:12,303 INFO L225 Difference]: With dead ends: 1595 [2022-07-13 17:39:12,303 INFO L226 Difference]: Without dead ends: 1017 [2022-07-13 17:39:12,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:39:12,306 INFO L413 NwaCegarLoop]: 984 mSDtfsCounter, 2219 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 3981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:12,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 1959 Invalid, 3981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 3196 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-13 17:39:12,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2022-07-13 17:39:12,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 663. [2022-07-13 17:39:12,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 505 states have (on average 1.5881188118811882) internal successors, (802), 530 states have internal predecessors, (802), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:39:12,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1043 transitions. [2022-07-13 17:39:12,379 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1043 transitions. Word has length 104 [2022-07-13 17:39:12,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:12,380 INFO L495 AbstractCegarLoop]: Abstraction has 663 states and 1043 transitions. [2022-07-13 17:39:12,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:12,380 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1043 transitions. [2022-07-13 17:39:12,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-13 17:39:12,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:12,382 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:39:12,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 17:39:12,382 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:12,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:12,383 INFO L85 PathProgramCache]: Analyzing trace with hash -751678663, now seen corresponding path program 1 times [2022-07-13 17:39:12,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:12,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215135887] [2022-07-13 17:39:12,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:12,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:39:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:39:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:39:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:39:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:39:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:39:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 17:39:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:39:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:39:12,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:12,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215135887] [2022-07-13 17:39:12,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215135887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:12,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:12,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:39:12,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144253949] [2022-07-13 17:39:12,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:12,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:39:12,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:12,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:39:12,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:39:12,685 INFO L87 Difference]: Start difference. First operand 663 states and 1043 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:18,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:18,425 INFO L93 Difference]: Finished difference Result 1586 states and 2650 transitions. [2022-07-13 17:39:18,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:39:18,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2022-07-13 17:39:18,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:18,429 INFO L225 Difference]: With dead ends: 1586 [2022-07-13 17:39:18,429 INFO L226 Difference]: Without dead ends: 1000 [2022-07-13 17:39:18,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 17:39:18,431 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 1137 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 3492 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 3893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 3492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:18,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 2000 Invalid, 3893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 3492 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-13 17:39:18,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2022-07-13 17:39:18,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 663. [2022-07-13 17:39:18,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 505 states have (on average 1.5782178217821783) internal successors, (797), 530 states have internal predecessors, (797), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:39:18,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1038 transitions. [2022-07-13 17:39:18,518 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1038 transitions. Word has length 105 [2022-07-13 17:39:18,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:18,519 INFO L495 AbstractCegarLoop]: Abstraction has 663 states and 1038 transitions. [2022-07-13 17:39:18,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:18,519 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1038 transitions. [2022-07-13 17:39:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-13 17:39:18,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:18,521 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:39:18,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 17:39:18,522 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:18,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1503669340, now seen corresponding path program 1 times [2022-07-13 17:39:18,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:18,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916637057] [2022-07-13 17:39:18,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:18,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:39:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:39:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:39:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:39:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:39:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:39:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 17:39:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:39:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:39:18,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:18,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916637057] [2022-07-13 17:39:18,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916637057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:18,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:18,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:39:18,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990442511] [2022-07-13 17:39:18,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:18,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:39:18,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:18,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:39:18,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:39:18,825 INFO L87 Difference]: Start difference. First operand 663 states and 1038 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:24,887 INFO L93 Difference]: Finished difference Result 1599 states and 2661 transitions. [2022-07-13 17:39:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 17:39:24,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2022-07-13 17:39:24,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:24,896 INFO L225 Difference]: With dead ends: 1599 [2022-07-13 17:39:24,896 INFO L226 Difference]: Without dead ends: 1021 [2022-07-13 17:39:24,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:39:24,899 INFO L413 NwaCegarLoop]: 980 mSDtfsCounter, 1135 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 3491 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 3869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 3491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:24,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 2017 Invalid, 3869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 3491 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-13 17:39:24,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2022-07-13 17:39:24,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 666. [2022-07-13 17:39:24,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 508 states have (on average 1.5748031496062993) internal successors, (800), 533 states have internal predecessors, (800), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:39:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 1041 transitions. [2022-07-13 17:39:24,962 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 1041 transitions. Word has length 105 [2022-07-13 17:39:24,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:24,963 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 1041 transitions. [2022-07-13 17:39:24,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:24,963 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 1041 transitions. [2022-07-13 17:39:24,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-13 17:39:24,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:24,965 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:39:24,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 17:39:24,965 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:24,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:24,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1190306546, now seen corresponding path program 1 times [2022-07-13 17:39:24,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:24,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293583016] [2022-07-13 17:39:24,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:24,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:24,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:39:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:39:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:39:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:39:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:39:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:39:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:39:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:39:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:25,314 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:39:25,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:25,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293583016] [2022-07-13 17:39:25,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293583016] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:25,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:25,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 17:39:25,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65607098] [2022-07-13 17:39:25,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:25,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 17:39:25,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:25,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 17:39:25,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:39:25,317 INFO L87 Difference]: Start difference. First operand 666 states and 1041 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:39:32,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:32,118 INFO L93 Difference]: Finished difference Result 1603 states and 2667 transitions. [2022-07-13 17:39:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 17:39:32,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 106 [2022-07-13 17:39:32,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:32,126 INFO L225 Difference]: With dead ends: 1603 [2022-07-13 17:39:32,126 INFO L226 Difference]: Without dead ends: 1028 [2022-07-13 17:39:32,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-13 17:39:32,131 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 1689 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 6636 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 7199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 6636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:32,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 2991 Invalid, 7199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 6636 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-13 17:39:32,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-07-13 17:39:32,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 677. [2022-07-13 17:39:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 516 states have (on average 1.571705426356589) internal successors, (811), 543 states have internal predecessors, (811), 124 states have call successors, (124), 35 states have call predecessors, (124), 36 states have return successors, (121), 115 states have call predecessors, (121), 119 states have call successors, (121) [2022-07-13 17:39:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1056 transitions. [2022-07-13 17:39:32,218 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 1056 transitions. Word has length 106 [2022-07-13 17:39:32,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:32,219 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 1056 transitions. [2022-07-13 17:39:32,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:39:32,219 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 1056 transitions. [2022-07-13 17:39:32,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-13 17:39:32,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:32,221 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:39:32,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 17:39:32,222 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:32,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:32,222 INFO L85 PathProgramCache]: Analyzing trace with hash 801207345, now seen corresponding path program 1 times [2022-07-13 17:39:32,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:32,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308724050] [2022-07-13 17:39:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:32,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:39:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:39:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:39:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:39:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:39:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:39:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:39:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:39:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:32,534 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:39:32,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:32,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308724050] [2022-07-13 17:39:32,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308724050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:32,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:32,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:39:32,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158858339] [2022-07-13 17:39:32,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:32,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:39:32,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:32,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:39:32,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:39:32,537 INFO L87 Difference]: Start difference. First operand 677 states and 1056 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:37,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:37,707 INFO L93 Difference]: Finished difference Result 1626 states and 2698 transitions. [2022-07-13 17:39:37,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 17:39:37,708 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2022-07-13 17:39:37,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:37,713 INFO L225 Difference]: With dead ends: 1626 [2022-07-13 17:39:37,713 INFO L226 Difference]: Without dead ends: 1045 [2022-07-13 17:39:37,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:39:37,716 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 2223 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 3154 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2333 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 3941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 3154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:37,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2333 Valid, 1942 Invalid, 3941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 3154 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-13 17:39:37,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2022-07-13 17:39:37,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 681. [2022-07-13 17:39:37,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 520 states have (on average 1.5653846153846154) internal successors, (814), 547 states have internal predecessors, (814), 124 states have call successors, (124), 35 states have call predecessors, (124), 36 states have return successors, (121), 115 states have call predecessors, (121), 119 states have call successors, (121) [2022-07-13 17:39:37,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1059 transitions. [2022-07-13 17:39:37,801 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1059 transitions. Word has length 106 [2022-07-13 17:39:37,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:37,802 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 1059 transitions. [2022-07-13 17:39:37,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:37,802 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1059 transitions. [2022-07-13 17:39:37,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-13 17:39:37,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:37,804 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:39:37,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 17:39:37,804 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:37,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:37,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1291218513, now seen corresponding path program 1 times [2022-07-13 17:39:37,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:37,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535112465] [2022-07-13 17:39:37,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:37,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:37,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:39:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:37,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:39:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:37,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:39:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:37,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:39:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:37,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:39:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:39:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:37,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:38,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:39:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:38,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:38,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:39:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:38,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:38,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:38,100 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:39:38,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:38,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535112465] [2022-07-13 17:39:38,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535112465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:38,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:38,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:39:38,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174712473] [2022-07-13 17:39:38,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:38,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:39:38,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:38,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:39:38,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:39:38,102 INFO L87 Difference]: Start difference. First operand 681 states and 1059 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:43,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:43,857 INFO L93 Difference]: Finished difference Result 1668 states and 2741 transitions. [2022-07-13 17:39:43,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:43,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2022-07-13 17:39:43,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:43,863 INFO L225 Difference]: With dead ends: 1668 [2022-07-13 17:39:43,863 INFO L226 Difference]: Without dead ends: 1004 [2022-07-13 17:39:43,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:39:43,866 INFO L413 NwaCegarLoop]: 986 mSDtfsCounter, 1050 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 3509 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 3883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 3509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:43,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 2008 Invalid, 3883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 3509 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-13 17:39:43,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2022-07-13 17:39:43,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 662. [2022-07-13 17:39:43,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 504 states have (on average 1.5714285714285714) internal successors, (792), 529 states have internal predecessors, (792), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:39:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1033 transitions. [2022-07-13 17:39:43,966 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1033 transitions. Word has length 106 [2022-07-13 17:39:43,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:43,966 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 1033 transitions. [2022-07-13 17:39:43,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:43,966 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1033 transitions. [2022-07-13 17:39:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-13 17:39:43,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:43,968 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:39:43,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 17:39:43,968 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:43,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:43,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1122047209, now seen corresponding path program 1 times [2022-07-13 17:39:43,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:43,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57764010] [2022-07-13 17:39:43,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:43,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:39:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:39:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:39:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:39:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:39:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:39:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:39:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:39:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:39:44,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:44,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57764010] [2022-07-13 17:39:44,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57764010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:44,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:44,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:39:44,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78199957] [2022-07-13 17:39:44,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:44,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:39:44,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:44,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:39:44,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:39:44,273 INFO L87 Difference]: Start difference. First operand 662 states and 1033 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:49,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:49,559 INFO L93 Difference]: Finished difference Result 1603 states and 2656 transitions. [2022-07-13 17:39:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 17:39:49,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 107 [2022-07-13 17:39:49,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:49,565 INFO L225 Difference]: With dead ends: 1603 [2022-07-13 17:39:49,565 INFO L226 Difference]: Without dead ends: 1025 [2022-07-13 17:39:49,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:39:49,568 INFO L413 NwaCegarLoop]: 978 mSDtfsCounter, 1634 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 3274 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 1965 SdHoareTripleChecker+Invalid, 3848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 3274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:49,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 1965 Invalid, 3848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 3274 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-13 17:39:49,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-07-13 17:39:49,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 667. [2022-07-13 17:39:49,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 509 states have (on average 1.5658153241650294) internal successors, (797), 534 states have internal predecessors, (797), 123 states have call successors, (123), 35 states have call predecessors, (123), 34 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:39:49,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1038 transitions. [2022-07-13 17:39:49,647 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1038 transitions. Word has length 107 [2022-07-13 17:39:49,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:49,648 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1038 transitions. [2022-07-13 17:39:49,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:39:49,648 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1038 transitions. [2022-07-13 17:39:49,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 17:39:49,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:49,650 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:39:49,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 17:39:49,650 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:49,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:49,651 INFO L85 PathProgramCache]: Analyzing trace with hash 756039932, now seen corresponding path program 1 times [2022-07-13 17:39:49,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:49,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300238811] [2022-07-13 17:39:49,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:49,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:39:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:39:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:39:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:39:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:39:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:39:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:39:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:39:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:39:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:49,958 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:39:49,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:49,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300238811] [2022-07-13 17:39:49,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300238811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:49,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:49,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 17:39:49,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684112511] [2022-07-13 17:39:49,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:49,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 17:39:49,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:49,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 17:39:49,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:39:49,960 INFO L87 Difference]: Start difference. First operand 667 states and 1038 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:00,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:00,748 INFO L93 Difference]: Finished difference Result 2570 states and 4341 transitions. [2022-07-13 17:40:00,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-13 17:40:00,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2022-07-13 17:40:00,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:00,781 INFO L225 Difference]: With dead ends: 2570 [2022-07-13 17:40:00,781 INFO L226 Difference]: Without dead ends: 2000 [2022-07-13 17:40:00,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2022-07-13 17:40:00,784 INFO L413 NwaCegarLoop]: 1108 mSDtfsCounter, 3939 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 7215 mSolverCounterSat, 1546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4089 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 8761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1546 IncrementalHoareTripleChecker+Valid, 7215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:00,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4089 Valid, 2905 Invalid, 8761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1546 Valid, 7215 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-07-13 17:40:00,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2022-07-13 17:40:00,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1298. [2022-07-13 17:40:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 998 states have (on average 1.5681362725450902) internal successors, (1565), 1041 states have internal predecessors, (1565), 230 states have call successors, (230), 68 states have call predecessors, (230), 69 states have return successors, (233), 221 states have call predecessors, (233), 225 states have call successors, (233) [2022-07-13 17:40:00,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 2028 transitions. [2022-07-13 17:40:00,955 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 2028 transitions. Word has length 108 [2022-07-13 17:40:00,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:00,955 INFO L495 AbstractCegarLoop]: Abstraction has 1298 states and 2028 transitions. [2022-07-13 17:40:00,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:00,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 2028 transitions. [2022-07-13 17:40:00,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 17:40:00,959 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:00,959 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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] [2022-07-13 17:40:00,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 17:40:00,960 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:00,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:00,960 INFO L85 PathProgramCache]: Analyzing trace with hash -926049706, now seen corresponding path program 1 times [2022-07-13 17:40:00,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:00,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198765731] [2022-07-13 17:40:00,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:00,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:40:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:40:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:40:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:40:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:40:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:40:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:40:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:40:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-13 17:40:01,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:01,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198765731] [2022-07-13 17:40:01,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198765731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:01,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:01,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 17:40:01,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673066264] [2022-07-13 17:40:01,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:01,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 17:40:01,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:01,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 17:40:01,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:01,348 INFO L87 Difference]: Start difference. First operand 1298 states and 2028 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-13 17:40:22,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:22,631 INFO L93 Difference]: Finished difference Result 6510 states and 11280 transitions. [2022-07-13 17:40:22,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-07-13 17:40:22,631 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 115 [2022-07-13 17:40:22,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:22,662 INFO L225 Difference]: With dead ends: 6510 [2022-07-13 17:40:22,663 INFO L226 Difference]: Without dead ends: 5387 [2022-07-13 17:40:22,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=558, Invalid=2982, Unknown=0, NotChecked=0, Total=3540 [2022-07-13 17:40:22,670 INFO L413 NwaCegarLoop]: 1332 mSDtfsCounter, 7850 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 17027 mSolverCounterSat, 3572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7892 SdHoareTripleChecker+Valid, 4465 SdHoareTripleChecker+Invalid, 20599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3572 IncrementalHoareTripleChecker+Valid, 17027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:22,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7892 Valid, 4465 Invalid, 20599 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3572 Valid, 17027 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2022-07-13 17:40:22,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5387 states. [2022-07-13 17:40:23,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5387 to 3574. [2022-07-13 17:40:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 2712 states have (on average 1.5759587020648969) internal successors, (4274), 2798 states have internal predecessors, (4274), 645 states have call successors, (645), 196 states have call predecessors, (645), 216 states have return successors, (765), 641 states have call predecessors, (765), 640 states have call successors, (765) [2022-07-13 17:40:23,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 5684 transitions. [2022-07-13 17:40:23,283 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 5684 transitions. Word has length 115 [2022-07-13 17:40:23,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:23,284 INFO L495 AbstractCegarLoop]: Abstraction has 3574 states and 5684 transitions. [2022-07-13 17:40:23,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-13 17:40:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 5684 transitions. [2022-07-13 17:40:23,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-07-13 17:40:23,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:23,294 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:23,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 17:40:23,295 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:23,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:23,295 INFO L85 PathProgramCache]: Analyzing trace with hash 2136683723, now seen corresponding path program 1 times [2022-07-13 17:40:23,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:23,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090530018] [2022-07-13 17:40:23,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:23,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:40:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:40:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:40:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:40:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:40:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:40:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:40:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:40:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:40:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:40:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:40:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-13 17:40:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 17:40:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:40:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:40:23,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:23,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090530018] [2022-07-13 17:40:23,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090530018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:23,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:23,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-13 17:40:23,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132379828] [2022-07-13 17:40:23,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:23,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-13 17:40:23,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:23,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-13 17:40:23,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-07-13 17:40:23,969 INFO L87 Difference]: Start difference. First operand 3574 states and 5684 transitions. Second operand has 16 states, 16 states have (on average 6.625) internal successors, (106), 9 states have internal predecessors, (106), 4 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) [2022-07-13 17:40:36,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:36,347 INFO L93 Difference]: Finished difference Result 10261 states and 18250 transitions. [2022-07-13 17:40:36,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-13 17:40:36,348 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.625) internal successors, (106), 9 states have internal predecessors, (106), 4 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) Word has length 159 [2022-07-13 17:40:36,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:36,389 INFO L225 Difference]: With dead ends: 10261 [2022-07-13 17:40:36,389 INFO L226 Difference]: Without dead ends: 6864 [2022-07-13 17:40:36,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=342, Invalid=918, Unknown=0, NotChecked=0, Total=1260 [2022-07-13 17:40:36,407 INFO L413 NwaCegarLoop]: 1086 mSDtfsCounter, 5045 mSDsluCounter, 3599 mSDsCounter, 0 mSdLazyCounter, 9815 mSolverCounterSat, 3245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5045 SdHoareTripleChecker+Valid, 4685 SdHoareTripleChecker+Invalid, 13060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3245 IncrementalHoareTripleChecker+Valid, 9815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:36,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5045 Valid, 4685 Invalid, 13060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3245 Valid, 9815 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-07-13 17:40:36,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6864 states. [2022-07-13 17:40:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6864 to 3644. [2022-07-13 17:40:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 2756 states have (on average 1.5667634252539913) internal successors, (4318), 2846 states have internal predecessors, (4318), 648 states have call successors, (648), 196 states have call predecessors, (648), 239 states have return successors, (820), 660 states have call predecessors, (820), 643 states have call successors, (820) [2022-07-13 17:40:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 5786 transitions. [2022-07-13 17:40:37,023 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 5786 transitions. Word has length 159 [2022-07-13 17:40:37,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:37,024 INFO L495 AbstractCegarLoop]: Abstraction has 3644 states and 5786 transitions. [2022-07-13 17:40:37,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.625) internal successors, (106), 9 states have internal predecessors, (106), 4 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) [2022-07-13 17:40:37,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 5786 transitions. [2022-07-13 17:40:37,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-13 17:40:37,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:37,035 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1] [2022-07-13 17:40:37,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 17:40:37,035 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:37,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1913342851, now seen corresponding path program 1 times [2022-07-13 17:40:37,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:37,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718666372] [2022-07-13 17:40:37,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:37,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:40:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:40:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:40:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:40:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:40:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:40:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:40:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 17:40:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 17:40:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:40:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:40:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-13 17:40:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 17:40:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:40:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:40:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-13 17:40:37,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:37,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718666372] [2022-07-13 17:40:37,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718666372] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:37,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:37,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 17:40:37,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304901283] [2022-07-13 17:40:37,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:37,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 17:40:37,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:37,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 17:40:37,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:40:37,557 INFO L87 Difference]: Start difference. First operand 3644 states and 5786 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 5 states have internal predecessors, (106), 5 states have call successors, (23), 7 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-13 17:41:03,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:03,556 INFO L93 Difference]: Finished difference Result 14799 states and 26001 transitions. [2022-07-13 17:41:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-07-13 17:41:03,557 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 5 states have internal predecessors, (106), 5 states have call successors, (23), 7 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 161 [2022-07-13 17:41:03,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:03,609 INFO L225 Difference]: With dead ends: 14799 [2022-07-13 17:41:03,609 INFO L226 Difference]: Without dead ends: 11331 [2022-07-13 17:41:03,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=466, Invalid=1984, Unknown=0, NotChecked=0, Total=2450 [2022-07-13 17:41:03,629 INFO L413 NwaCegarLoop]: 3974 mSDtfsCounter, 8056 mSDsluCounter, 4542 mSDsCounter, 0 mSdLazyCounter, 12614 mSolverCounterSat, 5737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8086 SdHoareTripleChecker+Valid, 8516 SdHoareTripleChecker+Invalid, 18351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5737 IncrementalHoareTripleChecker+Valid, 12614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:03,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8086 Valid, 8516 Invalid, 18351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5737 Valid, 12614 Invalid, 0 Unknown, 0 Unchecked, 21.5s Time] [2022-07-13 17:41:03,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11331 states. [2022-07-13 17:41:04,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11331 to 6838. [2022-07-13 17:41:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6838 states, 5191 states have (on average 1.5823540743594684) internal successors, (8214), 5358 states have internal predecessors, (8214), 1199 states have call successors, (1199), 380 states have call predecessors, (1199), 447 states have return successors, (1466), 1217 states have call predecessors, (1466), 1194 states have call successors, (1466) [2022-07-13 17:41:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6838 states to 6838 states and 10879 transitions. [2022-07-13 17:41:04,660 INFO L78 Accepts]: Start accepts. Automaton has 6838 states and 10879 transitions. Word has length 161 [2022-07-13 17:41:04,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:04,661 INFO L495 AbstractCegarLoop]: Abstraction has 6838 states and 10879 transitions. [2022-07-13 17:41:04,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 5 states have internal predecessors, (106), 5 states have call successors, (23), 7 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-13 17:41:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 6838 states and 10879 transitions. [2022-07-13 17:41:04,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-13 17:41:04,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:04,679 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:04,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 17:41:04,679 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:04,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:04,680 INFO L85 PathProgramCache]: Analyzing trace with hash 159112028, now seen corresponding path program 1 times [2022-07-13 17:41:04,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:04,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716664884] [2022-07-13 17:41:04,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:04,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:41:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:41:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:41:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:41:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:41:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:41:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:41:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:41:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:41:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:41:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:41:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:41:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 17:41:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:41:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:41:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:41:05,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:05,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716664884] [2022-07-13 17:41:05,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716664884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:05,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:05,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-13 17:41:05,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122128635] [2022-07-13 17:41:05,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:05,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 17:41:05,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:05,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 17:41:05,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-13 17:41:05,262 INFO L87 Difference]: Start difference. First operand 6838 states and 10879 transitions. Second operand has 15 states, 15 states have (on average 7.2) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (23), 7 states have call predecessors, (23), 4 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-13 17:41:28,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:28,358 INFO L93 Difference]: Finished difference Result 29694 states and 53352 transitions. [2022-07-13 17:41:28,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-13 17:41:28,359 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.2) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (23), 7 states have call predecessors, (23), 4 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) Word has length 161 [2022-07-13 17:41:28,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:28,565 INFO L225 Difference]: With dead ends: 29694 [2022-07-13 17:41:28,566 INFO L226 Difference]: Without dead ends: 23049 [2022-07-13 17:41:28,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=302, Invalid=1258, Unknown=0, NotChecked=0, Total=1560 [2022-07-13 17:41:28,603 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 4594 mSDsluCounter, 7349 mSDsCounter, 0 mSdLazyCounter, 17440 mSolverCounterSat, 2859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4708 SdHoareTripleChecker+Valid, 8787 SdHoareTripleChecker+Invalid, 20299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2859 IncrementalHoareTripleChecker+Valid, 17440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:28,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4708 Valid, 8787 Invalid, 20299 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2859 Valid, 17440 Invalid, 0 Unknown, 0 Unchecked, 16.7s Time] [2022-07-13 17:41:28,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23049 states. [2022-07-13 17:41:30,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23049 to 13224. [2022-07-13 17:41:30,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13224 states, 10066 states have (on average 1.5840453010133122) internal successors, (15945), 10397 states have internal predecessors, (15945), 2262 states have call successors, (2262), 758 states have call predecessors, (2262), 895 states have return successors, (2997), 2302 states have call predecessors, (2997), 2257 states have call successors, (2997) [2022-07-13 17:41:30,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13224 states to 13224 states and 21204 transitions. [2022-07-13 17:41:30,795 INFO L78 Accepts]: Start accepts. Automaton has 13224 states and 21204 transitions. Word has length 161 [2022-07-13 17:41:30,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:30,796 INFO L495 AbstractCegarLoop]: Abstraction has 13224 states and 21204 transitions. [2022-07-13 17:41:30,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.2) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (23), 7 states have call predecessors, (23), 4 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-13 17:41:30,796 INFO L276 IsEmpty]: Start isEmpty. Operand 13224 states and 21204 transitions. [2022-07-13 17:41:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-13 17:41:30,827 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:30,827 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 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, 1, 1] [2022-07-13 17:41:30,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 17:41:30,827 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:30,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:30,828 INFO L85 PathProgramCache]: Analyzing trace with hash -809847695, now seen corresponding path program 1 times [2022-07-13 17:41:30,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:30,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248010199] [2022-07-13 17:41:30,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:30,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:41:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:41:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:41:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:41:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:41:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:41:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:41:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:41:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 17:41:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:41:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:41:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:41:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 17:41:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:41:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:41:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,390 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-13 17:41:31,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:31,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248010199] [2022-07-13 17:41:31,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248010199] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:41:31,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992105409] [2022-07-13 17:41:31,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:31,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:41:31,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:41:31,393 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) [2022-07-13 17:41:31,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 17:41:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1904 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:41:31,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:41:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:41:31,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:41:31,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992105409] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:31,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:41:31,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [17] total 18 [2022-07-13 17:41:31,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116833112] [2022-07-13 17:41:31,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:31,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:41:31,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:31,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:41:31,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-07-13 17:41:31,886 INFO L87 Difference]: Start difference. First operand 13224 states and 21204 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-13 17:41:33,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:33,984 INFO L93 Difference]: Finished difference Result 19522 states and 31218 transitions. [2022-07-13 17:41:33,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:41:33,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 177 [2022-07-13 17:41:33,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:34,034 INFO L225 Difference]: With dead ends: 19522 [2022-07-13 17:41:34,035 INFO L226 Difference]: Without dead ends: 13237 [2022-07-13 17:41:34,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-07-13 17:41:34,056 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 933 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:34,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 2696 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:41:34,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13237 states. [2022-07-13 17:41:35,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13237 to 13216. [2022-07-13 17:41:35,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13216 states, 10062 states have (on average 1.581097197376267) internal successors, (15909), 10393 states have internal predecessors, (15909), 2260 states have call successors, (2260), 758 states have call predecessors, (2260), 893 states have return successors, (2783), 2300 states have call predecessors, (2783), 2255 states have call successors, (2783) [2022-07-13 17:41:35,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13216 states to 13216 states and 20952 transitions. [2022-07-13 17:41:35,920 INFO L78 Accepts]: Start accepts. Automaton has 13216 states and 20952 transitions. Word has length 177 [2022-07-13 17:41:35,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:35,921 INFO L495 AbstractCegarLoop]: Abstraction has 13216 states and 20952 transitions. [2022-07-13 17:41:35,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-13 17:41:35,921 INFO L276 IsEmpty]: Start isEmpty. Operand 13216 states and 20952 transitions. [2022-07-13 17:41:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-13 17:41:35,949 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:35,949 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 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] [2022-07-13 17:41:35,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 17:41:36,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-07-13 17:41:36,164 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:36,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:36,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1072791172, now seen corresponding path program 1 times [2022-07-13 17:41:36,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:36,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344152101] [2022-07-13 17:41:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:36,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:41:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:41:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:41:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:41:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:41:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:41:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:41:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:41:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 17:41:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 17:41:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:41:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 17:41:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 17:41:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:41:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:41:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,911 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-13 17:41:36,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:36,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344152101] [2022-07-13 17:41:36,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344152101] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:41:36,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651694947] [2022-07-13 17:41:36,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:36,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:41:36,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:41:36,913 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) [2022-07-13 17:41:36,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 17:41:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:37,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1870 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:41:37,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:41:37,286 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-13 17:41:37,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:41:37,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651694947] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:37,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:41:37,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [17] total 18 [2022-07-13 17:41:37,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384289201] [2022-07-13 17:41:37,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:37,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:41:37,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:37,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:41:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-13 17:41:37,289 INFO L87 Difference]: Start difference. First operand 13216 states and 20952 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-13 17:41:40,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:40,757 INFO L93 Difference]: Finished difference Result 38897 states and 62356 transitions. [2022-07-13 17:41:40,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:41:40,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 164 [2022-07-13 17:41:40,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:40,852 INFO L225 Difference]: With dead ends: 38897 [2022-07-13 17:41:40,852 INFO L226 Difference]: Without dead ends: 26052 [2022-07-13 17:41:41,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 202 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-13 17:41:41,023 INFO L413 NwaCegarLoop]: 1234 mSDtfsCounter, 1010 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:41,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 2150 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:41:41,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26052 states.