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-programs/Problem101_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 23:43:31,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 23:43:31,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 23:43:31,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 23:43:31,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 23:43:31,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 23:43:31,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 23:43:31,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 23:43:31,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 23:43:31,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 23:43:31,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 23:43:31,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 23:43:31,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 23:43:31,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 23:43:31,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 23:43:31,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 23:43:31,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 23:43:31,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 23:43:31,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 23:43:31,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 23:43:31,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 23:43:31,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 23:43:31,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 23:43:31,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 23:43:31,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 23:43:31,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 23:43:31,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 23:43:31,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 23:43:31,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 23:43:31,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 23:43:31,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 23:43:31,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 23:43:31,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 23:43:31,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 23:43:31,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 23:43:31,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 23:43:31,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 23:43:31,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 23:43:31,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 23:43:31,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 23:43:31,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 23:43:31,788 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 [2019-09-07 23:43:31,802 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 23:43:31,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 23:43:31,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 23:43:31,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 23:43:31,804 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 23:43:31,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 23:43:31,805 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 23:43:31,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 23:43:31,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 23:43:31,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 23:43:31,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 23:43:31,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 23:43:31,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 23:43:31,806 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 23:43:31,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 23:43:31,806 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 23:43:31,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 23:43:31,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 23:43:31,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 23:43:31,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 23:43:31,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 23:43:31,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 23:43:31,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 23:43:31,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 23:43:31,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 23:43:31,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 23:43:31,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 23:43:31,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 23:43:31,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 23:43:31,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 23:43:31,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 23:43:31,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 23:43:31,861 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 23:43:31,862 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 23:43:31,863 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label13.c [2019-09-07 23:43:31,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4089f380/e14d548412af4aac82ed361f18f81a96/FLAG53a0b1494 [2019-09-07 23:43:34,107 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 23:43:34,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label13.c [2019-09-07 23:43:34,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4089f380/e14d548412af4aac82ed361f18f81a96/FLAG53a0b1494 [2019-09-07 23:43:34,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4089f380/e14d548412af4aac82ed361f18f81a96 [2019-09-07 23:43:34,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 23:43:34,627 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 23:43:34,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 23:43:34,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 23:43:34,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 23:43:34,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:43:34" (1/1) ... [2019-09-07 23:43:34,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1767cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:34, skipping insertion in model container [2019-09-07 23:43:34,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:43:34" (1/1) ... [2019-09-07 23:43:34,642 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 23:43:35,854 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 23:43:48,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 23:43:48,240 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 23:43:57,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 23:43:57,864 INFO L192 MainTranslator]: Completed translation [2019-09-07 23:43:57,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:57 WrapperNode [2019-09-07 23:43:57,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 23:43:57,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 23:43:57,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 23:43:57,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 23:43:57,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:57" (1/1) ... [2019-09-07 23:43:57,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:57" (1/1) ... [2019-09-07 23:43:58,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:57" (1/1) ... [2019-09-07 23:43:58,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:57" (1/1) ... [2019-09-07 23:44:00,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:57" (1/1) ... [2019-09-07 23:44:00,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:57" (1/1) ... [2019-09-07 23:44:00,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:57" (1/1) ... [2019-09-07 23:44:01,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 23:44:01,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 23:44:01,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 23:44:01,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 23:44:01,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:57" (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 [2019-09-07 23:44:01,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 23:44:01,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 23:44:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 23:44:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 23:44:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 23:44:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 23:44:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-09-07 23:44:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2019-09-07 23:44:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2019-09-07 23:44:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2019-09-07 23:44:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2019-09-07 23:44:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2019-09-07 23:44:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2019-09-07 23:44:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2019-09-07 23:44:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2019-09-07 23:44:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2019-09-07 23:44:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2019-09-07 23:44:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2019-09-07 23:44:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2019-09-07 23:44:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2019-09-07 23:44:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2019-09-07 23:44:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2019-09-07 23:44:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2019-09-07 23:44:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2019-09-07 23:44:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2019-09-07 23:44:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2019-09-07 23:44:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2019-09-07 23:44:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2019-09-07 23:44:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2019-09-07 23:44:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2019-09-07 23:44:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2019-09-07 23:44:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2019-09-07 23:44:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2019-09-07 23:44:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2019-09-07 23:44:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2019-09-07 23:44:01,223 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2019-09-07 23:44:01,223 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2019-09-07 23:44:01,223 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2019-09-07 23:44:01,223 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2019-09-07 23:44:01,223 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2019-09-07 23:44:01,223 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2019-09-07 23:44:01,223 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2019-09-07 23:44:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2019-09-07 23:44:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2019-09-07 23:44:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2019-09-07 23:44:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2019-09-07 23:44:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2019-09-07 23:44:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2019-09-07 23:44:01,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 23:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 23:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 23:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 23:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 23:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-09-07 23:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2019-09-07 23:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2019-09-07 23:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2019-09-07 23:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2019-09-07 23:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2019-09-07 23:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2019-09-07 23:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2019-09-07 23:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2019-09-07 23:44:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2019-09-07 23:44:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2019-09-07 23:44:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2019-09-07 23:44:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2019-09-07 23:44:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2019-09-07 23:44:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2019-09-07 23:44:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2019-09-07 23:44:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2019-09-07 23:44:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2019-09-07 23:44:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2019-09-07 23:44:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2019-09-07 23:44:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2019-09-07 23:44:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2019-09-07 23:44:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2019-09-07 23:44:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2019-09-07 23:44:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2019-09-07 23:44:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2019-09-07 23:44:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2019-09-07 23:44:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2019-09-07 23:44:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2019-09-07 23:44:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2019-09-07 23:44:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2019-09-07 23:44:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2019-09-07 23:44:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2019-09-07 23:44:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2019-09-07 23:44:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2019-09-07 23:44:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2019-09-07 23:44:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2019-09-07 23:44:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2019-09-07 23:44:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2019-09-07 23:44:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2019-09-07 23:44:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2019-09-07 23:44:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2019-09-07 23:44:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 23:44:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 23:44:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 23:44:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 23:44:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 23:44:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 23:44:50,397 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 23:44:50,398 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 23:44:50,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:44:50 BoogieIcfgContainer [2019-09-07 23:44:50,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 23:44:50,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 23:44:50,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 23:44:50,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 23:44:50,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 11:43:34" (1/3) ... [2019-09-07 23:44:50,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d01cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:44:50, skipping insertion in model container [2019-09-07 23:44:50,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:43:57" (2/3) ... [2019-09-07 23:44:50,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d01cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:44:50, skipping insertion in model container [2019-09-07 23:44:50,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:44:50" (3/3) ... [2019-09-07 23:44:50,413 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem101_label13.c [2019-09-07 23:44:50,423 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 23:44:50,436 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 23:44:50,453 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 23:44:50,535 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 23:44:50,535 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 23:44:50,536 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 23:44:50,536 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 23:44:50,536 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 23:44:50,536 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 23:44:50,536 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 23:44:50,536 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 23:44:50,537 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 23:44:50,695 INFO L276 IsEmpty]: Start isEmpty. Operand 10446 states. [2019-09-07 23:44:51,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10191 [2019-09-07 23:44:51,907 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:44:51,915 INFO L399 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:44:51,919 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:44:51,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:44:51,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1887676994, now seen corresponding path program 1 times [2019-09-07 23:44:51,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:44:51,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:44:51,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:44:51,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:44:51,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:44:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:46:40,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:46:40,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:46:40,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-07 23:46:40,787 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-07 23:46:40,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-07 23:46:40,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 23:46:40,805 INFO L87 Difference]: Start difference. First operand 10446 states. Second operand 4 states. [2019-09-07 23:48:05,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:48:05,830 INFO L93 Difference]: Finished difference Result 41642 states and 82628 transitions. [2019-09-07 23:48:05,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-07 23:48:05,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10190 [2019-09-07 23:48:05,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:48:06,045 INFO L225 Difference]: With dead ends: 41642 [2019-09-07 23:48:06,045 INFO L226 Difference]: Without dead ends: 31130 [2019-09-07 23:48:06,080 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 23:48:06,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31130 states. [2019-09-07 23:48:06,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31130 to 20756. [2019-09-07 23:48:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20756 states. [2019-09-07 23:48:06,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 38374 transitions. [2019-09-07 23:48:06,898 INFO L78 Accepts]: Start accepts. Automaton has 20756 states and 38374 transitions. Word has length 10190 [2019-09-07 23:48:06,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:48:06,926 INFO L475 AbstractCegarLoop]: Abstraction has 20756 states and 38374 transitions. [2019-09-07 23:48:06,926 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-07 23:48:06,926 INFO L276 IsEmpty]: Start isEmpty. Operand 20756 states and 38374 transitions. [2019-09-07 23:48:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10200 [2019-09-07 23:48:07,642 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:48:07,648 INFO L399 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:48:07,649 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:48:07,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:48:07,654 INFO L82 PathProgramCache]: Analyzing trace with hash -729215064, now seen corresponding path program 1 times [2019-09-07 23:48:07,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:48:07,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:48:07,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:48:07,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:48:07,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:48:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:48:46,556 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:48:46,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:48:46,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-07 23:48:46,588 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 23:48:46,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 23:48:46,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-07 23:48:46,590 INFO L87 Difference]: Start difference. First operand 20756 states and 38374 transitions. Second operand 5 states. [2019-09-07 23:50:03,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:50:03,290 INFO L93 Difference]: Finished difference Result 63358 states and 117241 transitions. [2019-09-07 23:50:03,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 23:50:03,290 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10199 [2019-09-07 23:50:03,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:50:03,463 INFO L225 Difference]: With dead ends: 63358 [2019-09-07 23:50:03,464 INFO L226 Difference]: Without dead ends: 42608 [2019-09-07 23:50:03,528 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-07 23:50:03,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42608 states. [2019-09-07 23:50:04,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42608 to 42326. [2019-09-07 23:50:04,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42326 states. [2019-09-07 23:50:05,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 69685 transitions. [2019-09-07 23:50:05,004 INFO L78 Accepts]: Start accepts. Automaton has 42326 states and 69685 transitions. Word has length 10199 [2019-09-07 23:50:05,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:50:05,007 INFO L475 AbstractCegarLoop]: Abstraction has 42326 states and 69685 transitions. [2019-09-07 23:50:05,007 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 23:50:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 42326 states and 69685 transitions. [2019-09-07 23:50:06,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10203 [2019-09-07 23:50:06,094 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:50:06,101 INFO L399 BasicCegarLoop]: trace histogram [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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:50:06,102 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:50:06,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:50:06,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1996490386, now seen corresponding path program 1 times [2019-09-07 23:50:06,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:50:06,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:50:06,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:50:06,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:50:06,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:50:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:50:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:50:39,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:50:39,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 23:50:39,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 23:50:39,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 23:50:39,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 23:50:39,243 INFO L87 Difference]: Start difference. First operand 42326 states and 69685 transitions. Second operand 6 states. [2019-09-07 23:52:04,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:52:04,561 INFO L93 Difference]: Finished difference Result 130476 states and 219198 transitions. [2019-09-07 23:52:04,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 23:52:04,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10202 [2019-09-07 23:52:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:52:04,818 INFO L225 Difference]: With dead ends: 130476 [2019-09-07 23:52:04,818 INFO L226 Difference]: Without dead ends: 88156 [2019-09-07 23:52:04,906 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:52:04,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88156 states. [2019-09-07 23:52:07,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88156 to 87057. [2019-09-07 23:52:07,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87057 states. [2019-09-07 23:52:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87057 states to 87057 states and 141239 transitions. [2019-09-07 23:52:07,203 INFO L78 Accepts]: Start accepts. Automaton has 87057 states and 141239 transitions. Word has length 10202 [2019-09-07 23:52:07,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:52:07,205 INFO L475 AbstractCegarLoop]: Abstraction has 87057 states and 141239 transitions. [2019-09-07 23:52:07,206 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 23:52:07,206 INFO L276 IsEmpty]: Start isEmpty. Operand 87057 states and 141239 transitions. [2019-09-07 23:52:07,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10208 [2019-09-07 23:52:07,877 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:52:07,882 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:52:07,883 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:52:07,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:52:07,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1730667124, now seen corresponding path program 1 times [2019-09-07 23:52:07,887 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:52:07,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:52:07,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:52:07,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:52:07,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:52:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:52:45,422 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:52:45,422 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 23:52:45,423 INFO L223 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 [2019-09-07 23:52:45,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:52:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:52:48,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 12347 conjuncts, 94 conjunts are in the unsatisfiable core [2019-09-07 23:52:48,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 23:53:47,922 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-07 23:53:47,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 23:53:47,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-09-07 23:53:47,974 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 23:53:47,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 23:53:47,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-07 23:53:47,975 INFO L87 Difference]: Start difference. First operand 87057 states and 141239 transitions. Second operand 7 states.