java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label06_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 18:21:34,434 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 18:21:34,436 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 18:21:34,450 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 18:21:34,450 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 18:21:34,451 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 18:21:34,455 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 18:21:34,458 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 18:21:34,459 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 18:21:34,461 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 18:21:34,462 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 18:21:34,464 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 18:21:34,465 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 18:21:34,467 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 18:21:34,468 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 18:21:34,476 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 18:21:34,477 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 18:21:34,481 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 18:21:34,485 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 18:21:34,486 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 18:21:34,487 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 18:21:34,490 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 18:21:34,493 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 18:21:34,495 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 18:21:34,495 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 18:21:34,496 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 18:21:34,497 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 18:21:34,497 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 18:21:34,500 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 18:21:34,501 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 18:21:34,501 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 18:21:34,502 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 18:21:34,502 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 18:21:34,502 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 18:21:34,503 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 18:21:34,503 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 18:21:34,504 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 18:21:34,531 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 18:21:34,532 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 18:21:34,533 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 18:21:34,534 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 18:21:34,534 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 18:21:34,534 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 18:21:34,535 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 18:21:34,535 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 18:21:34,535 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 18:21:34,535 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 18:21:34,535 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 18:21:34,536 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 18:21:34,537 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 18:21:34,537 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 18:21:34,537 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 18:21:34,537 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 18:21:34,538 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 18:21:34,539 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 18:21:34,539 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 18:21:34,539 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 18:21:34,540 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 18:21:34,540 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 18:21:34,540 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 18:21:34,540 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 18:21:34,540 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 18:21:34,540 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 18:21:34,541 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 18:21:34,541 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 18:21:34,616 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 18:21:34,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 18:21:34,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 18:21:34,639 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 18:21:34,640 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 18:21:34,641 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label06_false-unreach-call.c [2018-11-06 18:21:34,705 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7f0533e9/2da8700acf1945ab9b1f770b96ca4908/FLAGff1b76372 [2018-11-06 18:21:35,576 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 18:21:35,578 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label06_false-unreach-call.c [2018-11-06 18:21:35,623 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7f0533e9/2da8700acf1945ab9b1f770b96ca4908/FLAGff1b76372 [2018-11-06 18:21:35,645 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7f0533e9/2da8700acf1945ab9b1f770b96ca4908 [2018-11-06 18:21:35,661 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 18:21:35,663 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 18:21:35,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 18:21:35,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 18:21:35,668 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 18:21:35,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:21:35" (1/1) ... [2018-11-06 18:21:35,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c222be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:35, skipping insertion in model container [2018-11-06 18:21:35,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:21:35" (1/1) ... [2018-11-06 18:21:35,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 18:21:35,838 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 18:21:37,092 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 18:21:37,097 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 18:21:37,821 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 18:21:37,861 INFO L193 MainTranslator]: Completed translation [2018-11-06 18:21:37,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37 WrapperNode [2018-11-06 18:21:37,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 18:21:37,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 18:21:37,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 18:21:37,864 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 18:21:37,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (1/1) ... [2018-11-06 18:21:38,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (1/1) ... [2018-11-06 18:21:38,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 18:21:38,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 18:21:38,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 18:21:38,368 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 18:21:38,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (1/1) ... [2018-11-06 18:21:38,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (1/1) ... [2018-11-06 18:21:38,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (1/1) ... [2018-11-06 18:21:38,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (1/1) ... [2018-11-06 18:21:38,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (1/1) ... [2018-11-06 18:21:38,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (1/1) ... [2018-11-06 18:21:38,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (1/1) ... [2018-11-06 18:21:38,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 18:21:38,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 18:21:38,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 18:21:38,622 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 18:21:38,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 18:21:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 18:21:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 18:21:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 18:21:47,589 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 18:21:47,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:21:47 BoogieIcfgContainer [2018-11-06 18:21:47,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 18:21:47,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 18:21:47,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 18:21:47,595 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 18:21:47,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:21:35" (1/3) ... [2018-11-06 18:21:47,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a75ac57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:21:47, skipping insertion in model container [2018-11-06 18:21:47,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:21:37" (2/3) ... [2018-11-06 18:21:47,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a75ac57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:21:47, skipping insertion in model container [2018-11-06 18:21:47,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:21:47" (3/3) ... [2018-11-06 18:21:47,601 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label06_false-unreach-call.c [2018-11-06 18:21:47,612 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 18:21:47,622 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 18:21:47,640 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 18:21:47,688 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 18:21:47,689 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 18:21:47,689 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 18:21:47,689 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 18:21:47,689 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 18:21:47,689 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 18:21:47,690 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 18:21:47,690 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 18:21:47,690 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 18:21:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states. [2018-11-06 18:21:47,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2018-11-06 18:21:47,775 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:21:47,777 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:21:47,780 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:21:47,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:21:47,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1421327285, now seen corresponding path program 1 times [2018-11-06 18:21:47,791 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:21:47,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:21:47,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:21:47,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:21:47,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:21:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:21:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 18:21:50,120 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:21:50,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 18:21:50,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 18:21:50,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 18:21:50,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:21:50,144 INFO L87 Difference]: Start difference. First operand 886 states. Second operand 4 states. [2018-11-06 18:22:03,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:22:03,442 INFO L93 Difference]: Finished difference Result 3414 states and 6666 transitions. [2018-11-06 18:22:03,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:22:03,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 762 [2018-11-06 18:22:03,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:22:03,494 INFO L225 Difference]: With dead ends: 3414 [2018-11-06 18:22:03,494 INFO L226 Difference]: Without dead ends: 2521 [2018-11-06 18:22:03,503 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:22:03,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2018-11-06 18:22:03,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2521. [2018-11-06 18:22:03,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2521 states. [2018-11-06 18:22:03,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 4209 transitions. [2018-11-06 18:22:03,666 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 4209 transitions. Word has length 762 [2018-11-06 18:22:03,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:22:03,669 INFO L480 AbstractCegarLoop]: Abstraction has 2521 states and 4209 transitions. [2018-11-06 18:22:03,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 18:22:03,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 4209 transitions. [2018-11-06 18:22:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2018-11-06 18:22:03,692 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:22:03,693 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:22:03,694 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:22:03,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:22:03,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1997177967, now seen corresponding path program 1 times [2018-11-06 18:22:03,695 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:22:03,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:22:03,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:03,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:22:03,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:22:04,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 18:22:04,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:22:04,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 18:22:04,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 18:22:04,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 18:22:04,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:22:04,203 INFO L87 Difference]: Start difference. First operand 2521 states and 4209 transitions. Second operand 3 states. [2018-11-06 18:22:10,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:22:10,901 INFO L93 Difference]: Finished difference Result 7497 states and 12562 transitions. [2018-11-06 18:22:10,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:22:10,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 767 [2018-11-06 18:22:10,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:22:10,931 INFO L225 Difference]: With dead ends: 7497 [2018-11-06 18:22:10,932 INFO L226 Difference]: Without dead ends: 4978 [2018-11-06 18:22:10,939 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:22:10,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4978 states. [2018-11-06 18:22:11,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4978 to 4978. [2018-11-06 18:22:11,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4978 states. [2018-11-06 18:22:11,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4978 states to 4978 states and 7530 transitions. [2018-11-06 18:22:11,047 INFO L78 Accepts]: Start accepts. Automaton has 4978 states and 7530 transitions. Word has length 767 [2018-11-06 18:22:11,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:22:11,048 INFO L480 AbstractCegarLoop]: Abstraction has 4978 states and 7530 transitions. [2018-11-06 18:22:11,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 18:22:11,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4978 states and 7530 transitions. [2018-11-06 18:22:11,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2018-11-06 18:22:11,065 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:22:11,066 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:22:11,066 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:22:11,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:22:11,067 INFO L82 PathProgramCache]: Analyzing trace with hash -2054390742, now seen corresponding path program 1 times [2018-11-06 18:22:11,067 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:22:11,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:22:11,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:11,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:22:11,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:22:11,654 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 18:22:11,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:22:11,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 18:22:11,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 18:22:11,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 18:22:11,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:22:11,656 INFO L87 Difference]: Start difference. First operand 4978 states and 7530 transitions. Second operand 4 states. [2018-11-06 18:22:20,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:22:20,151 INFO L93 Difference]: Finished difference Result 19782 states and 29992 transitions. [2018-11-06 18:22:20,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:22:20,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 769 [2018-11-06 18:22:20,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:22:20,214 INFO L225 Difference]: With dead ends: 19782 [2018-11-06 18:22:20,215 INFO L226 Difference]: Without dead ends: 14806 [2018-11-06 18:22:20,223 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:22:20,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14806 states. [2018-11-06 18:22:20,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14806 to 14806. [2018-11-06 18:22:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14806 states. [2018-11-06 18:22:20,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14806 states to 14806 states and 20136 transitions. [2018-11-06 18:22:20,479 INFO L78 Accepts]: Start accepts. Automaton has 14806 states and 20136 transitions. Word has length 769 [2018-11-06 18:22:20,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:22:20,479 INFO L480 AbstractCegarLoop]: Abstraction has 14806 states and 20136 transitions. [2018-11-06 18:22:20,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 18:22:20,479 INFO L276 IsEmpty]: Start isEmpty. Operand 14806 states and 20136 transitions. [2018-11-06 18:22:20,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2018-11-06 18:22:20,514 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:22:20,515 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:22:20,515 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:22:20,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:22:20,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1725928371, now seen corresponding path program 1 times [2018-11-06 18:22:20,516 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:22:20,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:22:20,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:20,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:22:20,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:22:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 18:22:20,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:22:20,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 18:22:20,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 18:22:20,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 18:22:20,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:22:20,974 INFO L87 Difference]: Start difference. First operand 14806 states and 20136 transitions. Second operand 3 states. [2018-11-06 18:22:26,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:22:26,138 INFO L93 Difference]: Finished difference Result 36981 states and 51214 transitions. [2018-11-06 18:22:26,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:22:26,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 783 [2018-11-06 18:22:26,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:22:26,202 INFO L225 Difference]: With dead ends: 36981 [2018-11-06 18:22:26,202 INFO L226 Difference]: Without dead ends: 22177 [2018-11-06 18:22:26,220 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:22:26,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22177 states. [2018-11-06 18:22:26,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22177 to 22177. [2018-11-06 18:22:26,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22177 states. [2018-11-06 18:22:26,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22177 states to 22177 states and 28287 transitions. [2018-11-06 18:22:26,584 INFO L78 Accepts]: Start accepts. Automaton has 22177 states and 28287 transitions. Word has length 783 [2018-11-06 18:22:26,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:22:26,585 INFO L480 AbstractCegarLoop]: Abstraction has 22177 states and 28287 transitions. [2018-11-06 18:22:26,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 18:22:26,585 INFO L276 IsEmpty]: Start isEmpty. Operand 22177 states and 28287 transitions. [2018-11-06 18:22:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2018-11-06 18:22:26,632 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:22:26,633 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:22:26,633 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:22:26,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:22:26,634 INFO L82 PathProgramCache]: Analyzing trace with hash -756607869, now seen corresponding path program 1 times [2018-11-06 18:22:26,634 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:22:26,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:22:26,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:26,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:22:26,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:22:27,046 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 18:22:27,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:22:27,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 18:22:27,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 18:22:27,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 18:22:27,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:22:27,049 INFO L87 Difference]: Start difference. First operand 22177 states and 28287 transitions. Second operand 4 states. [2018-11-06 18:22:34,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:22:34,719 INFO L93 Difference]: Finished difference Result 66465 states and 87589 transitions. [2018-11-06 18:22:34,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:22:34,720 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 786 [2018-11-06 18:22:34,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:22:34,813 INFO L225 Difference]: With dead ends: 66465 [2018-11-06 18:22:34,813 INFO L226 Difference]: Without dead ends: 44290 [2018-11-06 18:22:34,852 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:22:34,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44290 states. [2018-11-06 18:22:35,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44290 to 44290. [2018-11-06 18:22:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44290 states. [2018-11-06 18:22:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44290 states to 44290 states and 57240 transitions. [2018-11-06 18:22:35,551 INFO L78 Accepts]: Start accepts. Automaton has 44290 states and 57240 transitions. Word has length 786 [2018-11-06 18:22:35,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:22:35,552 INFO L480 AbstractCegarLoop]: Abstraction has 44290 states and 57240 transitions. [2018-11-06 18:22:35,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 18:22:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 44290 states and 57240 transitions. [2018-11-06 18:22:35,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2018-11-06 18:22:35,633 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:22:35,634 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:22:35,634 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:22:35,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:22:35,635 INFO L82 PathProgramCache]: Analyzing trace with hash -296021565, now seen corresponding path program 1 times [2018-11-06 18:22:35,635 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:22:35,635 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:22:35,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:35,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:22:35,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:22:36,119 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-06 18:22:36,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:22:36,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 18:22:36,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 18:22:36,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 18:22:36,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:22:36,121 INFO L87 Difference]: Start difference. First operand 44290 states and 57240 transitions. Second operand 3 states. [2018-11-06 18:22:41,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:22:41,316 INFO L93 Difference]: Finished difference Result 100863 states and 129936 transitions. [2018-11-06 18:22:41,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:22:41,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 790 [2018-11-06 18:22:41,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:22:41,425 INFO L225 Difference]: With dead ends: 100863 [2018-11-06 18:22:41,426 INFO L226 Difference]: Without dead ends: 56575 [2018-11-06 18:22:41,484 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:22:41,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56575 states. [2018-11-06 18:22:42,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56575 to 56575. [2018-11-06 18:22:42,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56575 states. [2018-11-06 18:22:42,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56575 states to 56575 states and 71644 transitions. [2018-11-06 18:22:42,189 INFO L78 Accepts]: Start accepts. Automaton has 56575 states and 71644 transitions. Word has length 790 [2018-11-06 18:22:42,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:22:42,189 INFO L480 AbstractCegarLoop]: Abstraction has 56575 states and 71644 transitions. [2018-11-06 18:22:42,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 18:22:42,189 INFO L276 IsEmpty]: Start isEmpty. Operand 56575 states and 71644 transitions. [2018-11-06 18:22:42,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2018-11-06 18:22:42,228 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:22:42,229 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:22:42,229 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:22:42,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:22:42,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1534844482, now seen corresponding path program 1 times [2018-11-06 18:22:42,230 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:22:42,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:22:42,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:42,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:22:42,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:22:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 18:22:42,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:22:42,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 18:22:42,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 18:22:42,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 18:22:42,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:22:42,656 INFO L87 Difference]: Start difference. First operand 56575 states and 71644 transitions. Second operand 3 states. [2018-11-06 18:22:48,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:22:48,222 INFO L93 Difference]: Finished difference Result 122986 states and 155914 transitions. [2018-11-06 18:22:48,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:22:48,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 790 [2018-11-06 18:22:48,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:22:48,330 INFO L225 Difference]: With dead ends: 122986 [2018-11-06 18:22:48,331 INFO L226 Difference]: Without dead ends: 66413 [2018-11-06 18:22:48,382 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:22:48,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66413 states. [2018-11-06 18:22:49,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66413 to 66413. [2018-11-06 18:22:49,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66413 states. [2018-11-06 18:22:49,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66413 states to 66413 states and 82092 transitions. [2018-11-06 18:22:49,166 INFO L78 Accepts]: Start accepts. Automaton has 66413 states and 82092 transitions. Word has length 790 [2018-11-06 18:22:49,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:22:49,167 INFO L480 AbstractCegarLoop]: Abstraction has 66413 states and 82092 transitions. [2018-11-06 18:22:49,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 18:22:49,167 INFO L276 IsEmpty]: Start isEmpty. Operand 66413 states and 82092 transitions. [2018-11-06 18:22:49,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2018-11-06 18:22:49,214 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:22:49,215 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:22:49,215 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:22:49,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:22:49,216 INFO L82 PathProgramCache]: Analyzing trace with hash -123392994, now seen corresponding path program 1 times [2018-11-06 18:22:49,216 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:22:49,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:22:49,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:49,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:22:49,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:22:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-06 18:22:51,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:22:51,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 18:22:51,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 18:22:51,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 18:22:51,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:22:51,442 INFO L87 Difference]: Start difference. First operand 66413 states and 82092 transitions. Second operand 4 states. [2018-11-06 18:22:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:22:58,655 INFO L93 Difference]: Finished difference Result 132824 states and 164182 transitions. [2018-11-06 18:22:58,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:22:58,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 792 [2018-11-06 18:22:58,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:22:58,749 INFO L225 Difference]: With dead ends: 132824 [2018-11-06 18:22:58,750 INFO L226 Difference]: Without dead ends: 66413 [2018-11-06 18:22:58,801 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:22:58,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66413 states. [2018-11-06 18:22:59,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66413 to 66413. [2018-11-06 18:22:59,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66413 states. [2018-11-06 18:22:59,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66413 states to 66413 states and 80383 transitions. [2018-11-06 18:22:59,547 INFO L78 Accepts]: Start accepts. Automaton has 66413 states and 80383 transitions. Word has length 792 [2018-11-06 18:22:59,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:22:59,548 INFO L480 AbstractCegarLoop]: Abstraction has 66413 states and 80383 transitions. [2018-11-06 18:22:59,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 18:22:59,548 INFO L276 IsEmpty]: Start isEmpty. Operand 66413 states and 80383 transitions. [2018-11-06 18:22:59,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2018-11-06 18:22:59,589 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:22:59,590 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:22:59,590 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:22:59,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:22:59,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1360104914, now seen corresponding path program 1 times [2018-11-06 18:22:59,591 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:22:59,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:22:59,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:59,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:22:59,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:22:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:23:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-06 18:23:00,527 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 18:23:00,527 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 18:23:00,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:23:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:23:00,840 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 18:23:01,234 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-06 18:23:01,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 18:23:01,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-06 18:23:01,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 18:23:01,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 18:23:01,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 18:23:01,260 INFO L87 Difference]: Start difference. First operand 66413 states and 80383 transitions. Second operand 5 states. [2018-11-06 18:23:13,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:23:13,935 INFO L93 Difference]: Finished difference Result 249121 states and 307891 transitions. [2018-11-06 18:23:13,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 18:23:13,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 797 [2018-11-06 18:23:13,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:23:14,161 INFO L225 Difference]: With dead ends: 249121 [2018-11-06 18:23:14,161 INFO L226 Difference]: Without dead ends: 182710 [2018-11-06 18:23:14,232 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 802 GetRequests, 796 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-06 18:23:14,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182710 states. [2018-11-06 18:23:15,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182710 to 182710. [2018-11-06 18:23:15,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182710 states. [2018-11-06 18:23:16,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182710 states to 182710 states and 202904 transitions. [2018-11-06 18:23:16,040 INFO L78 Accepts]: Start accepts. Automaton has 182710 states and 202904 transitions. Word has length 797 [2018-11-06 18:23:16,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:23:16,041 INFO L480 AbstractCegarLoop]: Abstraction has 182710 states and 202904 transitions. [2018-11-06 18:23:16,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 18:23:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand 182710 states and 202904 transitions. [2018-11-06 18:23:16,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1170 [2018-11-06 18:23:16,122 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:23:16,122 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:23:16,123 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:23:16,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:23:16,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1855169556, now seen corresponding path program 1 times [2018-11-06 18:23:16,123 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:23:16,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:23:16,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:23:16,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:23:16,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:23:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:23:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2018-11-06 18:23:18,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:23:18,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 18:23:18,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 18:23:18,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 18:23:18,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:23:18,023 INFO L87 Difference]: Start difference. First operand 182710 states and 202904 transitions. Second operand 4 states. [2018-11-06 18:23:25,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:23:25,727 INFO L93 Difference]: Finished difference Result 364599 states and 404975 transitions. [2018-11-06 18:23:25,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:23:25,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1169 [2018-11-06 18:23:25,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:23:25,913 INFO L225 Difference]: With dead ends: 364599 [2018-11-06 18:23:25,914 INFO L226 Difference]: Without dead ends: 151550 [2018-11-06 18:23:26,011 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:23:26,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151550 states. [2018-11-06 18:23:27,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151550 to 151550. [2018-11-06 18:23:27,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151550 states. [2018-11-06 18:23:27,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151550 states to 151550 states and 155246 transitions. [2018-11-06 18:23:27,488 INFO L78 Accepts]: Start accepts. Automaton has 151550 states and 155246 transitions. Word has length 1169 [2018-11-06 18:23:27,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:23:27,488 INFO L480 AbstractCegarLoop]: Abstraction has 151550 states and 155246 transitions. [2018-11-06 18:23:27,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 18:23:27,488 INFO L276 IsEmpty]: Start isEmpty. Operand 151550 states and 155246 transitions. [2018-11-06 18:23:27,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1262 [2018-11-06 18:23:27,545 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:23:27,546 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:23:27,546 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:23:27,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:23:27,547 INFO L82 PathProgramCache]: Analyzing trace with hash -48132798, now seen corresponding path program 1 times [2018-11-06 18:23:27,547 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:23:27,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:23:27,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:23:27,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:23:27,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:23:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:23:30,101 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2018-11-06 18:23:30,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:23:30,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 18:23:30,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 18:23:30,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 18:23:30,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:23:30,103 INFO L87 Difference]: Start difference. First operand 151550 states and 155246 transitions. Second operand 3 states. [2018-11-06 18:23:34,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:23:34,161 INFO L93 Difference]: Finished difference Result 302279 states and 309664 transitions. [2018-11-06 18:23:34,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:23:34,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1261 [2018-11-06 18:23:34,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:23:34,321 INFO L225 Difference]: With dead ends: 302279 [2018-11-06 18:23:34,321 INFO L226 Difference]: Without dead ends: 151550 [2018-11-06 18:23:34,402 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:23:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151550 states. [2018-11-06 18:23:35,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151550 to 151550. [2018-11-06 18:23:35,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151550 states. [2018-11-06 18:23:35,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151550 states to 151550 states and 155156 transitions. [2018-11-06 18:23:35,775 INFO L78 Accepts]: Start accepts. Automaton has 151550 states and 155156 transitions. Word has length 1261 [2018-11-06 18:23:35,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:23:35,775 INFO L480 AbstractCegarLoop]: Abstraction has 151550 states and 155156 transitions. [2018-11-06 18:23:35,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 18:23:35,775 INFO L276 IsEmpty]: Start isEmpty. Operand 151550 states and 155156 transitions. [2018-11-06 18:23:35,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1285 [2018-11-06 18:23:35,833 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:23:35,834 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:23:35,834 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:23:35,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:23:35,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1848247765, now seen corresponding path program 1 times [2018-11-06 18:23:35,834 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:23:35,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:23:35,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:23:35,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:23:35,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:23:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:23:37,139 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-06 18:23:37,396 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-06 18:23:40,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 629 proven. 263 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-11-06 18:23:40,203 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 18:23:40,203 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 18:23:40,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:23:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:23:40,547 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 18:23:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2018-11-06 18:23:42,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 18:23:42,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-11-06 18:23:42,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 18:23:42,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 18:23:42,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-06 18:23:42,602 INFO L87 Difference]: Start difference. First operand 151550 states and 155156 transitions. Second operand 8 states. [2018-11-06 18:24:02,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:24:02,915 INFO L93 Difference]: Finished difference Result 301692 states and 308895 transitions. [2018-11-06 18:24:02,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-06 18:24:02,915 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1284 [2018-11-06 18:24:02,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:24:03,143 INFO L225 Difference]: With dead ends: 301692 [2018-11-06 18:24:03,143 INFO L226 Difference]: Without dead ends: 141939 [2018-11-06 18:24:03,230 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1305 GetRequests, 1291 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2018-11-06 18:24:03,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141939 states. [2018-11-06 18:24:05,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141939 to 136796. [2018-11-06 18:24:05,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136796 states. [2018-11-06 18:24:05,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136796 states to 136796 states and 139162 transitions. [2018-11-06 18:24:05,504 INFO L78 Accepts]: Start accepts. Automaton has 136796 states and 139162 transitions. Word has length 1284 [2018-11-06 18:24:05,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:24:05,505 INFO L480 AbstractCegarLoop]: Abstraction has 136796 states and 139162 transitions. [2018-11-06 18:24:05,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 18:24:05,505 INFO L276 IsEmpty]: Start isEmpty. Operand 136796 states and 139162 transitions. [2018-11-06 18:24:05,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1545 [2018-11-06 18:24:05,577 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:24:05,578 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:24:05,578 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:24:05,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:24:05,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1587523687, now seen corresponding path program 1 times [2018-11-06 18:24:05,579 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:24:05,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:24:05,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:24:05,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:24:05,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:24:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:24:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 1255 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2018-11-06 18:24:08,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:24:08,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 18:24:08,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 18:24:08,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 18:24:08,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:24:08,681 INFO L87 Difference]: Start difference. First operand 136796 states and 139162 transitions. Second operand 4 states. [2018-11-06 18:24:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:24:12,792 INFO L93 Difference]: Finished difference Result 273589 states and 278338 transitions. [2018-11-06 18:24:12,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:24:12,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1544 [2018-11-06 18:24:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:24:12,928 INFO L225 Difference]: With dead ends: 273589 [2018-11-06 18:24:12,929 INFO L226 Difference]: Without dead ends: 135974 [2018-11-06 18:24:12,980 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:24:13,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135974 states. [2018-11-06 18:24:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135974 to 133517. [2018-11-06 18:24:14,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133517 states. [2018-11-06 18:24:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133517 states to 133517 states and 135536 transitions. [2018-11-06 18:24:14,187 INFO L78 Accepts]: Start accepts. Automaton has 133517 states and 135536 transitions. Word has length 1544 [2018-11-06 18:24:14,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:24:14,187 INFO L480 AbstractCegarLoop]: Abstraction has 133517 states and 135536 transitions. [2018-11-06 18:24:14,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 18:24:14,188 INFO L276 IsEmpty]: Start isEmpty. Operand 133517 states and 135536 transitions. [2018-11-06 18:24:14,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1885 [2018-11-06 18:24:14,260 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:24:14,261 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:24:14,262 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:24:14,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:24:14,263 INFO L82 PathProgramCache]: Analyzing trace with hash 889408127, now seen corresponding path program 1 times [2018-11-06 18:24:14,263 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:24:14,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:24:14,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:24:14,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:24:14,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:24:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:24:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2328 backedges. 1404 proven. 8 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2018-11-06 18:24:17,453 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 18:24:17,453 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 18:24:17,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:24:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:24:17,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 18:24:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2328 backedges. 1404 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2018-11-06 18:24:19,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 18:24:19,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 18:24:19,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 18:24:19,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 18:24:19,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 18:24:19,801 INFO L87 Difference]: Start difference. First operand 133517 states and 135536 transitions. Second operand 5 states. [2018-11-06 18:24:24,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:24:24,560 INFO L93 Difference]: Finished difference Result 266213 states and 270247 transitions. [2018-11-06 18:24:24,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:24:24,560 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1884 [2018-11-06 18:24:24,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:24:24,696 INFO L225 Difference]: With dead ends: 266213 [2018-11-06 18:24:24,696 INFO L226 Difference]: Without dead ends: 133517 [2018-11-06 18:24:24,764 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1889 GetRequests, 1884 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 18:24:24,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133517 states. [2018-11-06 18:24:25,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133517 to 132698. [2018-11-06 18:24:25,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132698 states. [2018-11-06 18:24:26,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132698 states to 132698 states and 134335 transitions. [2018-11-06 18:24:26,026 INFO L78 Accepts]: Start accepts. Automaton has 132698 states and 134335 transitions. Word has length 1884 [2018-11-06 18:24:26,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:24:26,027 INFO L480 AbstractCegarLoop]: Abstraction has 132698 states and 134335 transitions. [2018-11-06 18:24:26,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 18:24:26,027 INFO L276 IsEmpty]: Start isEmpty. Operand 132698 states and 134335 transitions. [2018-11-06 18:24:26,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2080 [2018-11-06 18:24:26,097 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:24:26,099 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:24:26,099 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:24:26,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:24:26,100 INFO L82 PathProgramCache]: Analyzing trace with hash -889578627, now seen corresponding path program 1 times [2018-11-06 18:24:26,100 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:24:26,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:24:26,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:24:26,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:24:26,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:24:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:24:27,360 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 9 [2018-11-06 18:24:29,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4673 backedges. 1888 proven. 0 refuted. 0 times theorem prover too weak. 2785 trivial. 0 not checked. [2018-11-06 18:24:29,430 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:24:29,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 18:24:29,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 18:24:29,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 18:24:29,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:24:29,432 INFO L87 Difference]: Start difference. First operand 132698 states and 134335 transitions. Second operand 4 states. [2018-11-06 18:24:34,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:24:34,553 INFO L93 Difference]: Finished difference Result 267851 states and 271164 transitions. [2018-11-06 18:24:34,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:24:34,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2079 [2018-11-06 18:24:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:24:34,676 INFO L225 Difference]: With dead ends: 267851 [2018-11-06 18:24:34,676 INFO L226 Difference]: Without dead ends: 135974 [2018-11-06 18:24:34,741 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:24:34,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135974 states. [2018-11-06 18:24:35,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135974 to 131060. [2018-11-06 18:24:35,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131060 states. [2018-11-06 18:24:36,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131060 states to 131060 states and 132424 transitions. [2018-11-06 18:24:36,066 INFO L78 Accepts]: Start accepts. Automaton has 131060 states and 132424 transitions. Word has length 2079 [2018-11-06 18:24:36,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:24:36,067 INFO L480 AbstractCegarLoop]: Abstraction has 131060 states and 132424 transitions. [2018-11-06 18:24:36,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 18:24:36,067 INFO L276 IsEmpty]: Start isEmpty. Operand 131060 states and 132424 transitions. [2018-11-06 18:24:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2099 [2018-11-06 18:24:36,141 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:24:36,142 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:24:36,143 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:24:36,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:24:36,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1716131691, now seen corresponding path program 1 times [2018-11-06 18:24:36,144 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:24:36,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:24:36,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:24:36,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:24:36,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:24:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:24:37,488 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-06 18:24:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4206 backedges. 2459 proven. 8 refuted. 0 times theorem prover too weak. 1739 trivial. 0 not checked. [2018-11-06 18:24:46,429 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 18:24:46,429 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 18:24:46,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:24:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:24:47,040 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 18:24:49,400 INFO L134 CoverageAnalysis]: Checked inductivity of 4206 backedges. 2453 proven. 0 refuted. 0 times theorem prover too weak. 1753 trivial. 0 not checked. [2018-11-06 18:24:49,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 18:24:49,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2018-11-06 18:24:49,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-06 18:24:49,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-06 18:24:49,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-11-06 18:24:49,425 INFO L87 Difference]: Start difference. First operand 131060 states and 132424 transitions. Second operand 14 states. [2018-11-06 18:25:13,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:25:13,277 INFO L93 Difference]: Finished difference Result 259226 states and 261957 transitions. [2018-11-06 18:25:13,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-06 18:25:13,277 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 2098 [2018-11-06 18:25:13,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:25:13,399 INFO L225 Difference]: With dead ends: 259226 [2018-11-06 18:25:13,399 INFO L226 Difference]: Without dead ends: 128987 [2018-11-06 18:25:13,467 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2125 GetRequests, 2103 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2018-11-06 18:25:13,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128987 states. Received shutdown request... [2018-11-06 18:25:14,097 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 18:25:14,101 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 18:25:14,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 06:25:14 BoogieIcfgContainer [2018-11-06 18:25:14,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 18:25:14,102 INFO L168 Benchmark]: Toolchain (without parser) took 218440.75 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 4.1 GB in the end (delta: -2.7 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-06 18:25:14,103 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 18:25:14,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2198.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 212.1 MB). Peak memory consumption was 212.1 MB. Max. memory is 7.1 GB. [2018-11-06 18:25:14,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 503.86 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 803.2 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2018-11-06 18:25:14,106 INFO L168 Benchmark]: Boogie Preprocessor took 254.09 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2018-11-06 18:25:14,106 INFO L168 Benchmark]: RCFGBuilder took 8968.71 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 198.7 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -98.0 MB). Peak memory consumption was 643.0 MB. Max. memory is 7.1 GB. [2018-11-06 18:25:14,107 INFO L168 Benchmark]: TraceAbstraction took 206510.06 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.3 GB). Free memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-06 18:25:14,113 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2198.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 212.1 MB). Peak memory consumption was 212.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 503.86 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 803.2 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 254.09 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8968.71 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 198.7 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -98.0 MB). Peak memory consumption was 643.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206510.06 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.3 GB). Free memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4640]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4640). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 886 locations, 1 error locations. TIMEOUT Result, 206.4s OverallTime, 16 OverallIterations, 11 TraceHistogramMax, 144.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11252 SDtfs, 46251 SDslu, 1451 SDs, 0 SdLazy, 89924 SolverSat, 16617 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6161 GetRequests, 6092 SyntacticMatches, 7 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182710occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 15.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 13333 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.0s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 17.1s InterpolantComputationTime, 24418 NumberOfCodeBlocks, 24418 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 24398 ConstructedInterpolants, 0 QuantifiedInterpolants, 84248593 SizeOfPredicates, 3 NumberOfNonLiveVariables, 7146 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 20 InterpolantComputations, 16 PerfectInterpolantSequences, 23067/23350 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown