java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 17:56:45,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 17:56:45,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 17:56:45,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 17:56:45,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 17:56:45,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 17:56:45,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 17:56:45,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 17:56:45,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 17:56:45,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 17:56:45,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 17:56:45,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 17:56:45,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 17:56:45,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 17:56:45,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 17:56:45,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 17:56:45,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 17:56:45,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 17:56:45,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 17:56:45,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 17:56:45,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 17:56:45,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 17:56:45,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 17:56:45,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 17:56:45,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 17:56:45,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 17:56:45,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 17:56:45,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 17:56:45,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 17:56:45,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 17:56:45,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 17:56:45,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 17:56:45,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 17:56:45,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 17:56:45,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 17:56:45,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 17:56:45,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 17:56:45,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 17:56:45,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 17:56:45,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 17:56:45,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 17:56:45,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 17:56:45,390 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 17:56:45,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 17:56:45,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 17:56:45,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 17:56:45,393 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 17:56:45,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 17:56:45,394 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 17:56:45,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 17:56:45,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 17:56:45,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 17:56:45,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 17:56:45,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 17:56:45,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 17:56:45,396 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 17:56:45,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 17:56:45,397 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 17:56:45,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 17:56:45,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 17:56:45,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 17:56:45,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 17:56:45,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 17:56:45,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 17:56:45,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 17:56:45,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 17:56:45,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 17:56:45,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 17:56:45,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 17:56:45,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 17:56:45,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 17:56:45,680 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 17:56:45,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 17:56:45,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 17:56:45,704 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 17:56:45,704 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 17:56:45,705 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label44.c [2019-10-13 17:56:45,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06c456ec/7f500d59a04543d3a9ccaade432597ef/FLAGfbe2380e5 [2019-10-13 17:56:46,594 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 17:56:46,595 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label44.c [2019-10-13 17:56:46,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06c456ec/7f500d59a04543d3a9ccaade432597ef/FLAGfbe2380e5 [2019-10-13 17:56:46,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06c456ec/7f500d59a04543d3a9ccaade432597ef [2019-10-13 17:56:46,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 17:56:46,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 17:56:46,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 17:56:46,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 17:56:46,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 17:56:46,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:56:46" (1/1) ... [2019-10-13 17:56:46,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b20f996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:46, skipping insertion in model container [2019-10-13 17:56:46,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:56:46" (1/1) ... [2019-10-13 17:56:46,742 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 17:56:46,908 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 17:56:48,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 17:56:48,683 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 17:56:49,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 17:56:49,409 INFO L192 MainTranslator]: Completed translation [2019-10-13 17:56:49,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:49 WrapperNode [2019-10-13 17:56:49,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 17:56:49,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 17:56:49,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 17:56:49,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 17:56:49,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:49" (1/1) ... [2019-10-13 17:56:49,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:49" (1/1) ... [2019-10-13 17:56:49,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:49" (1/1) ... [2019-10-13 17:56:49,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:49" (1/1) ... [2019-10-13 17:56:49,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:49" (1/1) ... [2019-10-13 17:56:49,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:49" (1/1) ... [2019-10-13 17:56:49,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:49" (1/1) ... [2019-10-13 17:56:49,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 17:56:49,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 17:56:49,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 17:56:49,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 17:56:49,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:49" (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 [2019-10-13 17:56:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 17:56:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 17:56:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-13 17:56:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-10-13 17:56:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-10-13 17:56:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-10-13 17:56:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 17:56:49,762 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-13 17:56:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-10-13 17:56:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-10-13 17:56:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-10-13 17:56:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 17:56:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 17:56:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 17:56:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 17:56:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 17:56:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 17:56:54,202 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 17:56:54,202 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 17:56:54,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:56:54 BoogieIcfgContainer [2019-10-13 17:56:54,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 17:56:54,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 17:56:54,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 17:56:54,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 17:56:54,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:56:46" (1/3) ... [2019-10-13 17:56:54,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@777f01b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:56:54, skipping insertion in model container [2019-10-13 17:56:54,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:49" (2/3) ... [2019-10-13 17:56:54,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@777f01b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:56:54, skipping insertion in model container [2019-10-13 17:56:54,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:56:54" (3/3) ... [2019-10-13 17:56:54,213 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label44.c [2019-10-13 17:56:54,226 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 17:56:54,235 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 17:56:54,249 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 17:56:54,288 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 17:56:54,289 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 17:56:54,289 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 17:56:54,289 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 17:56:54,289 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 17:56:54,289 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 17:56:54,290 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 17:56:54,290 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 17:56:54,337 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2019-10-13 17:56:54,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2019-10-13 17:56:54,454 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:56:54,459 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 17:56:54,462 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:56:54,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:56:54,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1766115387, now seen corresponding path program 1 times [2019-10-13 17:56:54,479 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:56:54,479 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794856005] [2019-10-13 17:56:54,480 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:56:54,480 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:56:54,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:56:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:56:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:56:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 17:56:56,735 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794856005] [2019-10-13 17:56:56,736 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 17:56:56,736 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 17:56:56,736 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856674341] [2019-10-13 17:56:56,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 17:56:56,744 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:56:56,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 17:56:56,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 17:56:56,760 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 5 states. [2019-10-13 17:57:09,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:57:09,068 INFO L93 Difference]: Finished difference Result 3521 states and 6826 transitions. [2019-10-13 17:57:09,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 17:57:09,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 794 [2019-10-13 17:57:09,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:57:09,122 INFO L225 Difference]: With dead ends: 3521 [2019-10-13 17:57:09,123 INFO L226 Difference]: Without dead ends: 2547 [2019-10-13 17:57:09,132 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 17:57:09,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2019-10-13 17:57:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2534. [2019-10-13 17:57:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2534 states. [2019-10-13 17:57:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 4139 transitions. [2019-10-13 17:57:09,316 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 4139 transitions. Word has length 794 [2019-10-13 17:57:09,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:57:09,322 INFO L462 AbstractCegarLoop]: Abstraction has 2534 states and 4139 transitions. [2019-10-13 17:57:09,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 17:57:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 4139 transitions. [2019-10-13 17:57:09,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2019-10-13 17:57:09,355 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:57:09,356 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 17:57:09,357 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:57:09,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:57:09,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1178936172, now seen corresponding path program 1 times [2019-10-13 17:57:09,358 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:57:09,359 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354937094] [2019-10-13 17:57:09,359 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:57:09,359 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:57:09,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:57:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:57:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:57:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:57:10,285 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 17:57:10,289 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354937094] [2019-10-13 17:57:10,289 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 17:57:10,289 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 17:57:10,290 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827154288] [2019-10-13 17:57:10,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 17:57:10,298 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:57:10,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 17:57:10,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-13 17:57:10,299 INFO L87 Difference]: Start difference. First operand 2534 states and 4139 transitions. Second operand 8 states. [2019-10-13 17:57:21,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:57:21,060 INFO L93 Difference]: Finished difference Result 7750 states and 12918 transitions. [2019-10-13 17:57:21,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 17:57:21,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 809 [2019-10-13 17:57:21,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:57:21,101 INFO L225 Difference]: With dead ends: 7750 [2019-10-13 17:57:21,101 INFO L226 Difference]: Without dead ends: 5222 [2019-10-13 17:57:21,110 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2019-10-13 17:57:21,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5222 states. [2019-10-13 17:57:21,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5222 to 5161. [2019-10-13 17:57:21,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5161 states. [2019-10-13 17:57:21,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 8360 transitions. [2019-10-13 17:57:21,307 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 8360 transitions. Word has length 809 [2019-10-13 17:57:21,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:57:21,309 INFO L462 AbstractCegarLoop]: Abstraction has 5161 states and 8360 transitions. [2019-10-13 17:57:21,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 17:57:21,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 8360 transitions. [2019-10-13 17:57:21,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2019-10-13 17:57:21,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:57:21,337 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 17:57:21,338 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:57:21,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:57:21,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1511041955, now seen corresponding path program 1 times [2019-10-13 17:57:21,339 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:57:21,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477655269] [2019-10-13 17:57:21,340 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:57:21,340 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:57:21,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:57:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:57:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:57:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:57:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:57:21,926 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 17:57:21,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477655269] [2019-10-13 17:57:21,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385882055] [2019-10-13 17:57:21,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true