./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec3_product11.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 79cd0e89b784c92aef5addf1ffd5f426704de99d9c0060c88cf4cdcbae792c3b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 00:42:28,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 00:42:28,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 00:42:28,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 00:42:28,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 00:42:28,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 00:42:28,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 00:42:28,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 00:42:28,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 00:42:28,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 00:42:28,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 00:42:28,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 00:42:28,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 00:42:28,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 00:42:28,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 00:42:28,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 00:42:28,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 00:42:28,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 00:42:28,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 00:42:28,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 00:42:28,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 00:42:28,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 00:42:28,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 00:42:28,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 00:42:28,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 00:42:28,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 00:42:28,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 00:42:28,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 00:42:28,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 00:42:28,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 00:42:28,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 00:42:28,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 00:42:28,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 00:42:28,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 00:42:28,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 00:42:28,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 00:42:28,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 00:42:28,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 00:42:28,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 00:42:28,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 00:42:28,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 00:42:28,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 00:42:28,448 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 00:42:28,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 00:42:28,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 00:42:28,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 00:42:28,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 00:42:28,450 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 00:42:28,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 00:42:28,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 00:42:28,451 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 00:42:28,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 00:42:28,452 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 00:42:28,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 00:42:28,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 00:42:28,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 00:42:28,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 00:42:28,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 00:42:28,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 00:42:28,454 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 00:42:28,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 00:42:28,454 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 00:42:28,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 00:42:28,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 00:42:28,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 00:42:28,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 00:42:28,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:42:28,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 00:42:28,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 00:42:28,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 00:42:28,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 00:42:28,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 00:42:28,457 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 00:42:28,457 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 00:42:28,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 00:42:28,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 00:42:28,458 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79cd0e89b784c92aef5addf1ffd5f426704de99d9c0060c88cf4cdcbae792c3b [2021-12-16 00:42:28,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 00:42:28,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 00:42:28,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 00:42:28,731 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 00:42:28,731 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 00:42:28,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c [2021-12-16 00:42:28,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83df18cac/0f13be82932440f3892224cee58475f0/FLAGd1cf1432f [2021-12-16 00:42:29,327 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 00:42:29,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c [2021-12-16 00:42:29,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83df18cac/0f13be82932440f3892224cee58475f0/FLAGd1cf1432f [2021-12-16 00:42:29,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83df18cac/0f13be82932440f3892224cee58475f0 [2021-12-16 00:42:29,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 00:42:29,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 00:42:29,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 00:42:29,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 00:42:29,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 00:42:29,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:42:29" (1/1) ... [2021-12-16 00:42:29,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240db315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:29, skipping insertion in model container [2021-12-16 00:42:29,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:42:29" (1/1) ... [2021-12-16 00:42:29,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 00:42:29,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 00:42:29,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c[1545,1558] [2021-12-16 00:42:30,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:42:30,089 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 00:42:30,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c[1545,1558] [2021-12-16 00:42:30,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:42:30,228 INFO L208 MainTranslator]: Completed translation [2021-12-16 00:42:30,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30 WrapperNode [2021-12-16 00:42:30,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 00:42:30,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 00:42:30,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 00:42:30,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 00:42:30,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (1/1) ... [2021-12-16 00:42:30,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (1/1) ... [2021-12-16 00:42:30,326 INFO L137 Inliner]: procedures = 91, calls = 344, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 1101 [2021-12-16 00:42:30,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 00:42:30,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 00:42:30,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 00:42:30,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 00:42:30,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (1/1) ... [2021-12-16 00:42:30,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (1/1) ... [2021-12-16 00:42:30,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (1/1) ... [2021-12-16 00:42:30,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (1/1) ... [2021-12-16 00:42:30,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (1/1) ... [2021-12-16 00:42:30,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (1/1) ... [2021-12-16 00:42:30,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (1/1) ... [2021-12-16 00:42:30,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 00:42:30,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 00:42:30,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 00:42:30,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 00:42:30,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (1/1) ... [2021-12-16 00:42:30,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:42:30,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:42:30,420 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) [2021-12-16 00:42:30,448 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 [2021-12-16 00:42:30,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 00:42:30,470 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2021-12-16 00:42:30,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2021-12-16 00:42:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-12-16 00:42:30,471 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-12-16 00:42:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2021-12-16 00:42:30,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2021-12-16 00:42:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-12-16 00:42:30,471 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-12-16 00:42:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2021-12-16 00:42:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2021-12-16 00:42:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-12-16 00:42:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-12-16 00:42:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-16 00:42:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-16 00:42:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-16 00:42:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-16 00:42:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-12-16 00:42:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-12-16 00:42:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-12-16 00:42:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-12-16 00:42:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-12-16 00:42:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-12-16 00:42:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-12-16 00:42:30,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-12-16 00:42:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2021-12-16 00:42:30,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2021-12-16 00:42:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2021-12-16 00:42:30,474 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2021-12-16 00:42:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-12-16 00:42:30,475 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-12-16 00:42:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2021-12-16 00:42:30,475 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2021-12-16 00:42:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2021-12-16 00:42:30,475 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2021-12-16 00:42:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-12-16 00:42:30,476 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-12-16 00:42:30,476 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-12-16 00:42:30,476 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-12-16 00:42:30,476 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-12-16 00:42:30,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-12-16 00:42:30,476 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-12-16 00:42:30,476 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-12-16 00:42:30,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 00:42:30,477 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2021-12-16 00:42:30,477 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2021-12-16 00:42:30,477 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-12-16 00:42:30,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-12-16 00:42:30,477 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-12-16 00:42:30,478 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-12-16 00:42:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-12-16 00:42:30,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-12-16 00:42:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 00:42:30,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 00:42:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-12-16 00:42:30,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-12-16 00:42:30,646 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 00:42:30,648 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 00:42:31,500 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 00:42:31,513 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 00:42:31,514 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 00:42:31,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:42:31 BoogieIcfgContainer [2021-12-16 00:42:31,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 00:42:31,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 00:42:31,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 00:42:31,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 00:42:31,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:42:29" (1/3) ... [2021-12-16 00:42:31,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ddb787f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:42:31, skipping insertion in model container [2021-12-16 00:42:31,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:30" (2/3) ... [2021-12-16 00:42:31,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ddb787f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:42:31, skipping insertion in model container [2021-12-16 00:42:31,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:42:31" (3/3) ... [2021-12-16 00:42:31,525 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product11.cil.c [2021-12-16 00:42:31,529 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 00:42:31,529 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 00:42:31,570 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 00:42:31,576 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 00:42:31,576 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 00:42:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 583 states, 449 states have (on average 1.6748329621380846) internal successors, (752), 467 states have internal predecessors, (752), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2021-12-16 00:42:31,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-16 00:42:31,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:42:31,652 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:42:31,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:42:31,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:42:31,657 INFO L85 PathProgramCache]: Analyzing trace with hash -766320480, now seen corresponding path program 1 times [2021-12-16 00:42:31,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:42:31,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235564722] [2021-12-16 00:42:31,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:42:31,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:42:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:42:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:42:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:42:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-16 00:42:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-16 00:42:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 00:42:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 00:42:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:42:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:42:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:42:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:42:32,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:42:32,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235564722] [2021-12-16 00:42:32,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235564722] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:42:32,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:42:32,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 00:42:32,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149018678] [2021-12-16 00:42:32,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:42:32,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 00:42:32,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:42:32,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 00:42:32,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:42:32,603 INFO L87 Difference]: Start difference. First operand has 583 states, 449 states have (on average 1.6748329621380846) internal successors, (752), 467 states have internal predecessors, (752), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:42:39,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:42:39,379 INFO L93 Difference]: Finished difference Result 1520 states and 2624 transitions. [2021-12-16 00:42:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:42:39,382 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2021-12-16 00:42:39,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:42:39,406 INFO L225 Difference]: With dead ends: 1520 [2021-12-16 00:42:39,406 INFO L226 Difference]: Without dead ends: 937 [2021-12-16 00:42:39,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-12-16 00:42:39,422 INFO L933 BasicCegarLoop]: 986 mSDtfsCounter, 1724 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 5273 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 3961 SdHoareTripleChecker+Invalid, 5827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 5273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-16 00:42:39,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1835 Valid, 3961 Invalid, 5827 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [554 Valid, 5273 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-16 00:42:39,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2021-12-16 00:42:39,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 586. [2021-12-16 00:42:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 452 states have (on average 1.665929203539823) internal successors, (753), 470 states have internal predecessors, (753), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2021-12-16 00:42:39,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 966 transitions. [2021-12-16 00:42:39,612 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 966 transitions. Word has length 113 [2021-12-16 00:42:39,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:42:39,613 INFO L470 AbstractCegarLoop]: Abstraction has 586 states and 966 transitions. [2021-12-16 00:42:39,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:42:39,613 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 966 transitions. [2021-12-16 00:42:39,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-16 00:42:39,621 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:42:39,622 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:42:39,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 00:42:39,623 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:42:39,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:42:39,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1891470132, now seen corresponding path program 1 times [2021-12-16 00:42:39,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:42:39,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427798305] [2021-12-16 00:42:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:42:39,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:42:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:42:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:42:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:42:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 00:42:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 00:42:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-16 00:42:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 00:42:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:42:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:40,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:40,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:42:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:40,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:42:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:42:40,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:42:40,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427798305] [2021-12-16 00:42:40,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427798305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:42:40,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:42:40,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 00:42:40,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088268198] [2021-12-16 00:42:40,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:42:40,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 00:42:40,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:42:40,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 00:42:40,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:42:40,025 INFO L87 Difference]: Start difference. First operand 586 states and 966 transitions. Second operand has 10 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:42:45,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:42:45,986 INFO L93 Difference]: Finished difference Result 1510 states and 2570 transitions. [2021-12-16 00:42:45,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-16 00:42:45,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2021-12-16 00:42:45,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:42:45,994 INFO L225 Difference]: With dead ends: 1510 [2021-12-16 00:42:45,994 INFO L226 Difference]: Without dead ends: 940 [2021-12-16 00:42:45,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-12-16 00:42:45,998 INFO L933 BasicCegarLoop]: 944 mSDtfsCounter, 1673 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 5315 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 5875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 5315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:42:45,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1784 Valid, 3790 Invalid, 5875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 5315 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-16 00:42:46,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2021-12-16 00:42:46,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 586. [2021-12-16 00:42:46,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 452 states have (on average 1.663716814159292) internal successors, (752), 470 states have internal predecessors, (752), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2021-12-16 00:42:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 965 transitions. [2021-12-16 00:42:46,081 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 965 transitions. Word has length 114 [2021-12-16 00:42:46,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:42:46,081 INFO L470 AbstractCegarLoop]: Abstraction has 586 states and 965 transitions. [2021-12-16 00:42:46,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:42:46,082 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 965 transitions. [2021-12-16 00:42:46,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-16 00:42:46,084 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:42:46,085 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:42:46,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 00:42:46,085 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:42:46,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:42:46,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1416407114, now seen corresponding path program 1 times [2021-12-16 00:42:46,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:42:46,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489533581] [2021-12-16 00:42:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:42:46,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:42:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:42:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:42:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 00:42:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 00:42:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 00:42:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-16 00:42:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 00:42:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:42:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:42:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:42:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:46,429 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:42:46,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:42:46,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489533581] [2021-12-16 00:42:46,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489533581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:42:46,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:42:46,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:42:46,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063463853] [2021-12-16 00:42:46,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:42:46,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:42:46,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:42:46,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:42:46,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:42:46,433 INFO L87 Difference]: Start difference. First operand 586 states and 965 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:42:50,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:42:50,781 INFO L93 Difference]: Finished difference Result 1501 states and 2550 transitions. [2021-12-16 00:42:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 00:42:50,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2021-12-16 00:42:50,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:42:50,788 INFO L225 Difference]: With dead ends: 1501 [2021-12-16 00:42:50,788 INFO L226 Difference]: Without dead ends: 900 [2021-12-16 00:42:50,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:42:50,792 INFO L933 BasicCegarLoop]: 952 mSDtfsCounter, 1602 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 3173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:42:50,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1712 Valid, 2245 Invalid, 3173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 2624 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-16 00:42:50,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2021-12-16 00:42:50,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 562. [2021-12-16 00:42:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 431 states have (on average 1.654292343387471) internal successors, (713), 447 states have internal predecessors, (713), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2021-12-16 00:42:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 922 transitions. [2021-12-16 00:42:50,867 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 922 transitions. Word has length 114 [2021-12-16 00:42:50,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:42:50,868 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 922 transitions. [2021-12-16 00:42:50,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:42:50,868 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 922 transitions. [2021-12-16 00:42:50,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-16 00:42:50,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:42:50,871 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:42:50,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 00:42:50,871 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:42:50,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:42:50,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1301003116, now seen corresponding path program 1 times [2021-12-16 00:42:50,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:42:50,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712620844] [2021-12-16 00:42:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:42:50,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:42:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:42:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:42:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:42:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 00:42:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 00:42:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 00:42:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 00:42:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:42:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:42:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 00:42:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:51,237 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:42:51,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:42:51,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712620844] [2021-12-16 00:42:51,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712620844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:42:51,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:42:51,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 00:42:51,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517132239] [2021-12-16 00:42:51,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:42:51,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 00:42:51,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:42:51,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 00:42:51,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:42:51,240 INFO L87 Difference]: Start difference. First operand 562 states and 922 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:42:56,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:42:56,471 INFO L93 Difference]: Finished difference Result 1464 states and 2481 transitions. [2021-12-16 00:42:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:42:56,474 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2021-12-16 00:42:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:42:56,479 INFO L225 Difference]: With dead ends: 1464 [2021-12-16 00:42:56,479 INFO L226 Difference]: Without dead ends: 894 [2021-12-16 00:42:56,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-12-16 00:42:56,484 INFO L933 BasicCegarLoop]: 938 mSDtfsCounter, 1640 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 5137 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 3773 SdHoareTripleChecker+Invalid, 5680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 5137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-16 00:42:56,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1750 Valid, 3773 Invalid, 5680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 5137 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-16 00:42:56,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-12-16 00:42:56,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 556. [2021-12-16 00:42:56,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 425 states have (on average 1.6470588235294117) internal successors, (700), 441 states have internal predecessors, (700), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2021-12-16 00:42:56,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 909 transitions. [2021-12-16 00:42:56,568 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 909 transitions. Word has length 115 [2021-12-16 00:42:56,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:42:56,568 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 909 transitions. [2021-12-16 00:42:56,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:42:56,569 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 909 transitions. [2021-12-16 00:42:56,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-16 00:42:56,573 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:42:56,573 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:42:56,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 00:42:56,574 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:42:56,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:42:56,574 INFO L85 PathProgramCache]: Analyzing trace with hash -792377252, now seen corresponding path program 1 times [2021-12-16 00:42:56,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:42:56,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806646185] [2021-12-16 00:42:56,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:42:56,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:42:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:42:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:42:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:42:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:42:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 00:42:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 00:42:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:42:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:42:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:42:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 00:42:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:42:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:42:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:42:56,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:42:56,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806646185] [2021-12-16 00:42:56,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806646185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:42:56,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:42:56,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 00:42:56,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020252147] [2021-12-16 00:42:56,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:42:56,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 00:42:56,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:42:56,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 00:42:56,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:42:56,994 INFO L87 Difference]: Start difference. First operand 556 states and 909 transitions. Second operand has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:43:02,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:43:02,583 INFO L93 Difference]: Finished difference Result 1434 states and 2430 transitions. [2021-12-16 00:43:02,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:43:02,584 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2021-12-16 00:43:02,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:43:02,589 INFO L225 Difference]: With dead ends: 1434 [2021-12-16 00:43:02,589 INFO L226 Difference]: Without dead ends: 894 [2021-12-16 00:43:02,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-12-16 00:43:02,593 INFO L933 BasicCegarLoop]: 885 mSDtfsCounter, 1060 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 5196 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 3712 SdHoareTripleChecker+Invalid, 5529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 5196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-16 00:43:02,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1170 Valid, 3712 Invalid, 5529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 5196 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-16 00:43:02,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-12-16 00:43:02,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 556. [2021-12-16 00:43:02,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 425 states have (on average 1.6447058823529412) internal successors, (699), 441 states have internal predecessors, (699), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2021-12-16 00:43:02,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 908 transitions. [2021-12-16 00:43:02,676 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 908 transitions. Word has length 116 [2021-12-16 00:43:02,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:43:02,677 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 908 transitions. [2021-12-16 00:43:02,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:43:02,677 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 908 transitions. [2021-12-16 00:43:02,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-16 00:43:02,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:43:02,682 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:43:02,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 00:43:02,683 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:43:02,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:43:02,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2045131063, now seen corresponding path program 1 times [2021-12-16 00:43:02,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:43:02,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649119594] [2021-12-16 00:43:02,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:43:02,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:43:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:43:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:43:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:43:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-16 00:43:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-16 00:43:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 00:43:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 00:43:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:43:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:02,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:03,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:03,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 00:43:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 00:43:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:03,016 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:43:03,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:43:03,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649119594] [2021-12-16 00:43:03,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649119594] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:43:03,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:43:03,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 00:43:03,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584215922] [2021-12-16 00:43:03,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:43:03,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 00:43:03,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:43:03,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 00:43:03,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:43:03,019 INFO L87 Difference]: Start difference. First operand 556 states and 908 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:43:08,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:43:08,376 INFO L93 Difference]: Finished difference Result 1452 states and 2450 transitions. [2021-12-16 00:43:08,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:43:08,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2021-12-16 00:43:08,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:43:08,381 INFO L225 Difference]: With dead ends: 1452 [2021-12-16 00:43:08,381 INFO L226 Difference]: Without dead ends: 888 [2021-12-16 00:43:08,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-12-16 00:43:08,385 INFO L933 BasicCegarLoop]: 915 mSDtfsCounter, 1581 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 5173 mSolverCounterSat, 539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 5712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 5173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-16 00:43:08,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1691 Valid, 3722 Invalid, 5712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 5173 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-16 00:43:08,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2021-12-16 00:43:08,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 550. [2021-12-16 00:43:08,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 419 states have (on average 1.6372315035799523) internal successors, (686), 435 states have internal predecessors, (686), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2021-12-16 00:43:08,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 895 transitions. [2021-12-16 00:43:08,453 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 895 transitions. Word has length 117 [2021-12-16 00:43:08,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:43:08,453 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 895 transitions. [2021-12-16 00:43:08,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:43:08,454 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 895 transitions. [2021-12-16 00:43:08,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-16 00:43:08,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:43:08,456 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:43:08,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 00:43:08,457 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:43:08,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:43:08,457 INFO L85 PathProgramCache]: Analyzing trace with hash -432305187, now seen corresponding path program 1 times [2021-12-16 00:43:08,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:43:08,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566228403] [2021-12-16 00:43:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:43:08,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:43:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:43:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:43:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:43:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-16 00:43:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 00:43:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 00:43:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 00:43:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 00:43:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 00:43:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:43:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:08,770 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:43:08,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:43:08,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566228403] [2021-12-16 00:43:08,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566228403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:43:08,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:43:08,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 00:43:08,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780977912] [2021-12-16 00:43:08,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:43:08,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 00:43:08,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:43:08,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 00:43:08,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:43:08,773 INFO L87 Difference]: Start difference. First operand 550 states and 895 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:43:13,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:43:13,715 INFO L93 Difference]: Finished difference Result 1422 states and 2401 transitions. [2021-12-16 00:43:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:43:13,716 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2021-12-16 00:43:13,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:43:13,720 INFO L225 Difference]: With dead ends: 1422 [2021-12-16 00:43:13,720 INFO L226 Difference]: Without dead ends: 888 [2021-12-16 00:43:13,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-12-16 00:43:13,723 INFO L933 BasicCegarLoop]: 894 mSDtfsCounter, 2011 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 4918 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 5669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 4918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:43:13,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2121 Valid, 3722 Invalid, 5669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 4918 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-16 00:43:13,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2021-12-16 00:43:13,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 550. [2021-12-16 00:43:13,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 419 states have (on average 1.6348448687350836) internal successors, (685), 435 states have internal predecessors, (685), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2021-12-16 00:43:13,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 894 transitions. [2021-12-16 00:43:13,782 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 894 transitions. Word has length 118 [2021-12-16 00:43:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:43:13,783 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 894 transitions. [2021-12-16 00:43:13,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:43:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 894 transitions. [2021-12-16 00:43:13,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-16 00:43:13,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:43:13,786 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:43:13,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 00:43:13,786 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:43:13,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:43:13,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1224075539, now seen corresponding path program 1 times [2021-12-16 00:43:13,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:43:13,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740649981] [2021-12-16 00:43:13,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:43:13,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:43:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:13,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:43:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:43:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:43:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 00:43:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-16 00:43:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 00:43:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:43:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:43:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:43:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:43:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:14,175 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:43:14,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:43:14,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740649981] [2021-12-16 00:43:14,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740649981] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:43:14,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:43:14,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 00:43:14,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742241545] [2021-12-16 00:43:14,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:43:14,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 00:43:14,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:43:14,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 00:43:14,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:43:14,178 INFO L87 Difference]: Start difference. First operand 550 states and 894 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:43:19,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:43:19,449 INFO L93 Difference]: Finished difference Result 1440 states and 2419 transitions. [2021-12-16 00:43:19,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:43:19,450 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2021-12-16 00:43:19,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:43:19,454 INFO L225 Difference]: With dead ends: 1440 [2021-12-16 00:43:19,454 INFO L226 Difference]: Without dead ends: 882 [2021-12-16 00:43:19,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-12-16 00:43:19,457 INFO L933 BasicCegarLoop]: 906 mSDtfsCounter, 1052 mSDsluCounter, 2895 mSDsCounter, 0 mSdLazyCounter, 5135 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 3801 SdHoareTripleChecker+Invalid, 5469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 5135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-16 00:43:19,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 3801 Invalid, 5469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 5135 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-16 00:43:19,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-12-16 00:43:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 544. [2021-12-16 00:43:19,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 413 states have (on average 1.6271186440677967) internal successors, (672), 429 states have internal predecessors, (672), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2021-12-16 00:43:19,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 881 transitions. [2021-12-16 00:43:19,523 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 881 transitions. Word has length 119 [2021-12-16 00:43:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:43:19,523 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 881 transitions. [2021-12-16 00:43:19,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:43:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 881 transitions. [2021-12-16 00:43:19,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-16 00:43:19,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:43:19,526 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:43:19,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 00:43:19,527 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:43:19,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:43:19,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1365363252, now seen corresponding path program 1 times [2021-12-16 00:43:19,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:43:19,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474586231] [2021-12-16 00:43:19,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:43:19,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:43:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:43:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:43:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:43:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 00:43:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-16 00:43:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 00:43:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:43:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:43:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:43:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:43:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:43:19,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:43:19,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474586231] [2021-12-16 00:43:19,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474586231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:43:19,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:43:19,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 00:43:19,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844075336] [2021-12-16 00:43:19,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:43:19,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 00:43:19,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:43:19,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 00:43:19,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:43:19,857 INFO L87 Difference]: Start difference. First operand 544 states and 881 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:43:24,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:43:24,805 INFO L93 Difference]: Finished difference Result 1410 states and 2372 transitions. [2021-12-16 00:43:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:43:24,805 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2021-12-16 00:43:24,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:43:24,810 INFO L225 Difference]: With dead ends: 1410 [2021-12-16 00:43:24,810 INFO L226 Difference]: Without dead ends: 882 [2021-12-16 00:43:24,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-12-16 00:43:24,812 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 1511 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 4830 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 3667 SdHoareTripleChecker+Invalid, 5382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 4830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:43:24,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1621 Valid, 3667 Invalid, 5382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 4830 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-16 00:43:24,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-12-16 00:43:24,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 544. [2021-12-16 00:43:24,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 413 states have (on average 1.6246973365617434) internal successors, (671), 429 states have internal predecessors, (671), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2021-12-16 00:43:24,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 880 transitions. [2021-12-16 00:43:24,877 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 880 transitions. Word has length 119 [2021-12-16 00:43:24,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:43:24,877 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 880 transitions. [2021-12-16 00:43:24,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:43:24,878 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 880 transitions. [2021-12-16 00:43:24,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-16 00:43:24,880 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:43:24,880 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:43:24,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 00:43:24,880 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:43:24,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:43:24,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1835348381, now seen corresponding path program 1 times [2021-12-16 00:43:24,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:43:24,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373426094] [2021-12-16 00:43:24,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:43:24,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:43:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:43:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:43:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 00:43:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 00:43:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 00:43:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:43:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:43:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:43:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 00:43:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 00:43:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 00:43:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:43:25,204 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:43:25,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:43:25,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373426094] [2021-12-16 00:43:25,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373426094] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:43:25,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:43:25,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 00:43:25,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652656254] [2021-12-16 00:43:25,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:43:25,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 00:43:25,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:43:25,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 00:43:25,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:43:25,206 INFO L87 Difference]: Start difference. First operand 544 states and 880 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)