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_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 23:38:13,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 23:38:13,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 23:38:13,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 23:38:13,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 23:38:13,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 23:38:13,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 23:38:13,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 23:38:13,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 23:38:13,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 23:38:13,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 23:38:13,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 23:38:13,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 23:38:13,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 23:38:13,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 23:38:13,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 23:38:13,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 23:38:13,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 23:38:13,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 23:38:13,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 23:38:13,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 23:38:13,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 23:38:13,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 23:38:13,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 23:38:13,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 23:38:13,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 23:38:13,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 23:38:13,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 23:38:13,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 23:38:13,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 23:38:13,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 23:38:13,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 23:38:13,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 23:38:13,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 23:38:13,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 23:38:13,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 23:38:13,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 23:38:13,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 23:38:13,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 23:38:13,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 23:38:13,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 23:38:13,295 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 23:38:13,320 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 23:38:13,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 23:38:13,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 23:38:13,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 23:38:13,325 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 23:38:13,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 23:38:13,325 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 23:38:13,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 23:38:13,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 23:38:13,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 23:38:13,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 23:38:13,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 23:38:13,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 23:38:13,328 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 23:38:13,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 23:38:13,328 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 23:38:13,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 23:38:13,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 23:38:13,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 23:38:13,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 23:38:13,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 23:38:13,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 23:38:13,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 23:38:13,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 23:38:13,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 23:38:13,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 23:38:13,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 23:38:13,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 23:38:13,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 23:38:13,370 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 23:38:13,383 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 23:38:13,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 23:38:13,389 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 23:38:13,389 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 23:38:13,390 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label02.c [2019-09-07 23:38:13,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f285069/59ff0b3a81244e0987ec2425dffc9b60/FLAGeaff55ad6 [2019-09-07 23:38:15,837 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 23:38:15,838 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label02.c [2019-09-07 23:38:15,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f285069/59ff0b3a81244e0987ec2425dffc9b60/FLAGeaff55ad6 [2019-09-07 23:38:16,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f285069/59ff0b3a81244e0987ec2425dffc9b60 [2019-09-07 23:38:16,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 23:38:16,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 23:38:16,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 23:38:16,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 23:38:16,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 23:38:16,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:38:16" (1/1) ... [2019-09-07 23:38:16,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e607a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:16, skipping insertion in model container [2019-09-07 23:38:16,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:38:16" (1/1) ... [2019-09-07 23:38:16,352 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 23:38:17,370 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 23:38:29,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 23:38:29,157 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 23:38:37,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 23:38:41,349 INFO L192 MainTranslator]: Completed translation [2019-09-07 23:38:41,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:41 WrapperNode [2019-09-07 23:38:41,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 23:38:41,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 23:38:41,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 23:38:41,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 23:38:41,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:41" (1/1) ... [2019-09-07 23:38:41,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:41" (1/1) ... [2019-09-07 23:38:41,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:41" (1/1) ... [2019-09-07 23:38:41,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:41" (1/1) ... [2019-09-07 23:38:42,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:41" (1/1) ... [2019-09-07 23:38:42,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:41" (1/1) ... [2019-09-07 23:38:46,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:41" (1/1) ... [2019-09-07 23:38:47,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 23:38:47,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 23:38:47,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 23:38:47,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 23:38:47,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:41" (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 23:38:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 23:38:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 23:38:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 23:38:47,278 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 23:38:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 23:38:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 23:38:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-09-07 23:38:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2019-09-07 23:38:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2019-09-07 23:38:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2019-09-07 23:38:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2019-09-07 23:38:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2019-09-07 23:38:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2019-09-07 23:38:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2019-09-07 23:38:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2019-09-07 23:38:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2019-09-07 23:38:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2019-09-07 23:38:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2019-09-07 23:38:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2019-09-07 23:38:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2019-09-07 23:38:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2019-09-07 23:38:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2019-09-07 23:38:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2019-09-07 23:38:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2019-09-07 23:38:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2019-09-07 23:38:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2019-09-07 23:38:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2019-09-07 23:38:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2019-09-07 23:38:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2019-09-07 23:38:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2019-09-07 23:38:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2019-09-07 23:38:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2019-09-07 23:38:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2019-09-07 23:38:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2019-09-07 23:38:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2019-09-07 23:38:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2019-09-07 23:38:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2019-09-07 23:38:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2019-09-07 23:38:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 23:38:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 23:38:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 23:38:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 23:38:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 23:38:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-09-07 23:38:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2019-09-07 23:38:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2019-09-07 23:38:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2019-09-07 23:38:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2019-09-07 23:38:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2019-09-07 23:38:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2019-09-07 23:38:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2019-09-07 23:38:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2019-09-07 23:38:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2019-09-07 23:38:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2019-09-07 23:38:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2019-09-07 23:38:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2019-09-07 23:38:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2019-09-07 23:38:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2019-09-07 23:38:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2019-09-07 23:38:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2019-09-07 23:38:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2019-09-07 23:38:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2019-09-07 23:38:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2019-09-07 23:38:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2019-09-07 23:38:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2019-09-07 23:38:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2019-09-07 23:38:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2019-09-07 23:38:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2019-09-07 23:38:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2019-09-07 23:38:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2019-09-07 23:38:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2019-09-07 23:38:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2019-09-07 23:38:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2019-09-07 23:38:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2019-09-07 23:38:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2019-09-07 23:38:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2019-09-07 23:38:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2019-09-07 23:38:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2019-09-07 23:38:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2019-09-07 23:38:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2019-09-07 23:38:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2019-09-07 23:38:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2019-09-07 23:38:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2019-09-07 23:38:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2019-09-07 23:38:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2019-09-07 23:38:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 23:38:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 23:38:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 23:38:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 23:38:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 23:38:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 23:39:35,229 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 23:39:35,229 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 23:39:35,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:39:35 BoogieIcfgContainer [2019-09-07 23:39:35,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 23:39:35,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 23:39:35,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 23:39:35,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 23:39:35,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 11:38:16" (1/3) ... [2019-09-07 23:39:35,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455905a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:39:35, skipping insertion in model container [2019-09-07 23:39:35,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:41" (2/3) ... [2019-09-07 23:39:35,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455905a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:39:35, skipping insertion in model container [2019-09-07 23:39:35,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:39:35" (3/3) ... [2019-09-07 23:39:35,243 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem101_label02.c [2019-09-07 23:39:35,253 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 23:39:35,265 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 23:39:35,283 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 23:39:35,350 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 23:39:35,350 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 23:39:35,351 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 23:39:35,351 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 23:39:35,351 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 23:39:35,351 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 23:39:35,351 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 23:39:35,351 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 23:39:35,352 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 23:39:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 10446 states. [2019-09-07 23:39:36,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10202 [2019-09-07 23:39:36,613 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:39:36,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:39:36,627 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:39:36,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:39:36,644 INFO L82 PathProgramCache]: Analyzing trace with hash -788260187, now seen corresponding path program 1 times [2019-09-07 23:39:36,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:39:36,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:39:36,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:39:36,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:39:36,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:39:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:41:09,983 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 23:41:09,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:41:09,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 23:41:10,012 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 23:41:10,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 23:41:10,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 23:41:10,031 INFO L87 Difference]: Start difference. First operand 10446 states. Second operand 3 states. [2019-09-07 23:42:10,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:42:10,657 INFO L93 Difference]: Finished difference Result 31264 states and 61877 transitions. [2019-09-07 23:42:10,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 23:42:10,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10201 [2019-09-07 23:42:10,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:42:10,834 INFO L225 Difference]: With dead ends: 31264 [2019-09-07 23:42:10,834 INFO L226 Difference]: Without dead ends: 20756 [2019-09-07 23:42:10,869 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 47 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 23:42:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20756 states. [2019-09-07 23:42:11,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756. [2019-09-07 23:42:11,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20756 states. [2019-09-07 23:42:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40378 transitions. [2019-09-07 23:42:11,647 INFO L78 Accepts]: Start accepts. Automaton has 20756 states and 40378 transitions. Word has length 10201 [2019-09-07 23:42:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:42:11,668 INFO L475 AbstractCegarLoop]: Abstraction has 20756 states and 40378 transitions. [2019-09-07 23:42:11,668 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 23:42:11,668 INFO L276 IsEmpty]: Start isEmpty. Operand 20756 states and 40378 transitions. [2019-09-07 23:42:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10210 [2019-09-07 23:42:12,500 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:42:12,505 INFO L399 BasicCegarLoop]: trace histogram [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, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:42:12,506 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:42:12,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:42:12,511 INFO L82 PathProgramCache]: Analyzing trace with hash 926509681, now seen corresponding path program 1 times [2019-09-07 23:42:12,511 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:42:12,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:42:12,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:42:12,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:42:12,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:42:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:43:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:43:43,524 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 23:43:43,524 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 23:43:43,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:43:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:43:46,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 12261 conjuncts, 94 conjunts are in the unsatisfiable core [2019-09-07 23:43:46,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 23:44:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:44:46,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 23:44:46,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-09-07 23:44:46,961 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 23:44:46,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 23:44:46,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-07 23:44:46,962 INFO L87 Difference]: Start difference. First operand 20756 states and 40378 transitions. Second operand 7 states. [2019-09-07 23:46:28,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:46:28,551 INFO L93 Difference]: Finished difference Result 63092 states and 122631 transitions. [2019-09-07 23:46:28,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-07 23:46:28,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10209 [2019-09-07 23:46:28,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:46:28,786 INFO L225 Difference]: With dead ends: 63092 [2019-09-07 23:46:28,786 INFO L226 Difference]: Without dead ends: 42342 [2019-09-07 23:46:28,855 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10265 GetRequests, 10258 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:46:28,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42342 states. [2019-09-07 23:46:30,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42342 to 42052. [2019-09-07 23:46:30,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42052 states. [2019-09-07 23:46:30,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42052 states to 42052 states and 61950 transitions. [2019-09-07 23:46:30,166 INFO L78 Accepts]: Start accepts. Automaton has 42052 states and 61950 transitions. Word has length 10209 [2019-09-07 23:46:30,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:46:30,179 INFO L475 AbstractCegarLoop]: Abstraction has 42052 states and 61950 transitions. [2019-09-07 23:46:30,180 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-07 23:46:30,180 INFO L276 IsEmpty]: Start isEmpty. Operand 42052 states and 61950 transitions. [2019-09-07 23:46:31,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10220 [2019-09-07 23:46:31,354 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:46:31,360 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:46:31,361 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:46:31,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:46:31,366 INFO L82 PathProgramCache]: Analyzing trace with hash 741659137, now seen corresponding path program 1 times [2019-09-07 23:46:31,366 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:46:31,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:46:31,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:46:31,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:46:31,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:46:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:47:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:47:03,756 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 23:47:03,756 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 23:47:03,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:47:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:47:06,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 12362 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 23:47:06,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 23:47:37,551 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:47:37,565 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 23:47:37,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 23:47:37,580 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 23:47:37,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 23:47:37,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:47:37,581 INFO L87 Difference]: Start difference. First operand 42052 states and 61950 transitions. Second operand 9 states.