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_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 17:56:18,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 17:56:18,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 17:56:18,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 17:56:18,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 17:56:18,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 17:56:18,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 17:56:18,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 17:56:18,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 17:56:18,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 17:56:18,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 17:56:18,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 17:56:18,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 17:56:18,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 17:56:18,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 17:56:18,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 17:56:18,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 17:56:18,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 17:56:18,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 17:56:18,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 17:56:18,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 17:56:18,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 17:56:18,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 17:56:18,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 17:56:18,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 17:56:18,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 17:56:18,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 17:56:18,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 17:56:18,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 17:56:18,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 17:56:18,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 17:56:18,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 17:56:18,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 17:56:18,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 17:56:18,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 17:56:18,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 17:56:18,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 17:56:18,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 17:56:18,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 17:56:18,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 17:56:18,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 17:56:18,656 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 17:56:18,670 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 17:56:18,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 17:56:18,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 17:56:18,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 17:56:18,672 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 17:56:18,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 17:56:18,672 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 17:56:18,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 17:56:18,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 17:56:18,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 17:56:18,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 17:56:18,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 17:56:18,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 17:56:18,673 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 17:56:18,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 17:56:18,674 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 17:56:18,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 17:56:18,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 17:56:18,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 17:56:18,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 17:56:18,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 17:56:18,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 17:56:18,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 17:56:18,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 17:56:18,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 17:56:18,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 17:56:18,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 17:56:18,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 17:56:18,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 17:56:18,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 17:56:19,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 17:56:19,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 17:56:19,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 17:56:19,010 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 17:56:19,010 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label21.c [2019-10-13 17:56:19,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79be37da8/edbd4bd9080e419ebf7ad26951a7366a/FLAG7f8d1c3c7 [2019-10-13 17:56:19,911 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 17:56:19,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label21.c [2019-10-13 17:56:19,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79be37da8/edbd4bd9080e419ebf7ad26951a7366a/FLAG7f8d1c3c7 [2019-10-13 17:56:20,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79be37da8/edbd4bd9080e419ebf7ad26951a7366a [2019-10-13 17:56:20,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 17:56:20,446 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 17:56:20,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 17:56:20,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 17:56:20,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 17:56:20,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:56:20" (1/1) ... [2019-10-13 17:56:20,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32833bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:20, skipping insertion in model container [2019-10-13 17:56:20,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:56:20" (1/1) ... [2019-10-13 17:56:20,467 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 17:56:20,622 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 17:56:21,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 17:56:21,890 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 17:56:22,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 17:56:22,703 INFO L192 MainTranslator]: Completed translation [2019-10-13 17:56:22,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:22 WrapperNode [2019-10-13 17:56:22,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 17:56:22,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 17:56:22,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 17:56:22,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 17:56:22,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:22" (1/1) ... [2019-10-13 17:56:22,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:22" (1/1) ... [2019-10-13 17:56:22,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:22" (1/1) ... [2019-10-13 17:56:22,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:22" (1/1) ... [2019-10-13 17:56:22,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:22" (1/1) ... [2019-10-13 17:56:22,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:22" (1/1) ... [2019-10-13 17:56:22,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:22" (1/1) ... [2019-10-13 17:56:22,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 17:56:22,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 17:56:22,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 17:56:22,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 17:56:22,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:22" (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 17:56:23,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 17:56:23,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 17:56:23,047 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-13 17:56:23,047 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-10-13 17:56:23,048 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-10-13 17:56:23,048 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-10-13 17:56:23,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 17:56:23,048 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-13 17:56:23,048 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-10-13 17:56:23,049 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-10-13 17:56:23,049 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-10-13 17:56:23,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 17:56:23,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 17:56:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 17:56:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 17:56:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 17:56:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 17:56:27,742 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 17:56:27,742 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 17:56:27,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:56:27 BoogieIcfgContainer [2019-10-13 17:56:27,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 17:56:27,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 17:56:27,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 17:56:27,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 17:56:27,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:56:20" (1/3) ... [2019-10-13 17:56:27,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3769473c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:56:27, skipping insertion in model container [2019-10-13 17:56:27,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:56:22" (2/3) ... [2019-10-13 17:56:27,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3769473c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:56:27, skipping insertion in model container [2019-10-13 17:56:27,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:56:27" (3/3) ... [2019-10-13 17:56:27,761 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label21.c [2019-10-13 17:56:27,773 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 17:56:27,784 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 17:56:27,798 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 17:56:27,843 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 17:56:27,844 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 17:56:27,844 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 17:56:27,844 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 17:56:27,844 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 17:56:27,844 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 17:56:27,844 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 17:56:27,845 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 17:56:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2019-10-13 17:56:27,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2019-10-13 17:56:27,951 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:56:27,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 17:56:27,956 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:56:27,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:56:27,964 INFO L82 PathProgramCache]: Analyzing trace with hash 449962387, now seen corresponding path program 1 times [2019-10-13 17:56:27,973 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:56:27,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586289828] [2019-10-13 17:56:27,974 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:56:27,975 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:56:27,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:56:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:56:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:56:30,327 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 17:56:30,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586289828] [2019-10-13 17:56:30,329 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 17:56:30,329 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 17:56:30,329 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248539125] [2019-10-13 17:56:30,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 17:56:30,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:56:30,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 17:56:30,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 17:56:30,355 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 5 states. [2019-10-13 17:56:43,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:56:43,147 INFO L93 Difference]: Finished difference Result 3521 states and 6823 transitions. [2019-10-13 17:56:43,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 17:56:43,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 808 [2019-10-13 17:56:43,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:56:43,201 INFO L225 Difference]: With dead ends: 3521 [2019-10-13 17:56:43,202 INFO L226 Difference]: Without dead ends: 2547 [2019-10-13 17:56:43,212 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 17:56:43,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2019-10-13 17:56:43,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2534. [2019-10-13 17:56:43,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2534 states. [2019-10-13 17:56:43,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 4700 transitions. [2019-10-13 17:56:43,406 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 4700 transitions. Word has length 808 [2019-10-13 17:56:43,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:56:43,410 INFO L462 AbstractCegarLoop]: Abstraction has 2534 states and 4700 transitions. [2019-10-13 17:56:43,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 17:56:43,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 4700 transitions. [2019-10-13 17:56:43,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2019-10-13 17:56:43,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:56:43,446 INFO L380 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:56:43,447 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:56:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:56:43,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1581672456, now seen corresponding path program 1 times [2019-10-13 17:56:43,448 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:56:43,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571882267] [2019-10-13 17:56:43,449 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:56:43,449 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:56:43,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:56:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:56:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:56:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:56:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 17:56:44,532 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571882267] [2019-10-13 17:56:44,532 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 17:56:44,533 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 17:56:44,533 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791866405] [2019-10-13 17:56:44,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 17:56:44,536 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:56:44,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 17:56:44,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-13 17:56:44,537 INFO L87 Difference]: Start difference. First operand 2534 states and 4700 transitions. Second operand 9 states. [2019-10-13 17:56:55,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:56:55,290 INFO L93 Difference]: Finished difference Result 6011 states and 11152 transitions. [2019-10-13 17:56:55,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 17:56:55,291 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 881 [2019-10-13 17:56:55,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:56:55,313 INFO L225 Difference]: With dead ends: 6011 [2019-10-13 17:56:55,313 INFO L226 Difference]: Without dead ends: 3483 [2019-10-13 17:56:55,320 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-10-13 17:56:55,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2019-10-13 17:56:55,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3426. [2019-10-13 17:56:55,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3426 states. [2019-10-13 17:56:55,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 5760 transitions. [2019-10-13 17:56:55,444 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 5760 transitions. Word has length 881 [2019-10-13 17:56:55,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:56:55,446 INFO L462 AbstractCegarLoop]: Abstraction has 3426 states and 5760 transitions. [2019-10-13 17:56:55,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 17:56:55,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 5760 transitions. [2019-10-13 17:56:55,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2019-10-13 17:56:55,466 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:56:55,467 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:56:55,468 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:56:55,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:56:55,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1049292807, now seen corresponding path program 1 times [2019-10-13 17:56:55,469 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:56:55,469 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946520826] [2019-10-13 17:56:55,469 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:56:55,469 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:56:55,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:56:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:56:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:56:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:56:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat