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_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 23:51:19,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 23:51:19,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 23:51:19,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 23:51:19,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 23:51:19,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 23:51:19,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 23:51:19,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 23:51:19,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 23:51:19,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 23:51:19,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 23:51:19,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 23:51:19,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 23:51:19,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 23:51:19,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 23:51:19,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 23:51:19,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 23:51:19,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 23:51:19,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 23:51:19,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 23:51:19,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 23:51:19,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 23:51:19,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 23:51:19,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 23:51:19,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 23:51:19,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 23:51:19,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 23:51:19,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 23:51:19,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 23:51:19,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 23:51:19,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 23:51:19,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 23:51:19,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 23:51:19,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 23:51:19,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 23:51:19,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 23:51:19,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 23:51:19,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 23:51:19,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 23:51:19,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 23:51:19,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 23:51:19,166 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 23:51:19,193 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 23:51:19,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 23:51:19,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 23:51:19,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 23:51:19,196 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 23:51:19,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 23:51:19,196 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 23:51:19,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 23:51:19,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 23:51:19,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 23:51:19,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 23:51:19,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 23:51:19,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 23:51:19,199 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 23:51:19,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 23:51:19,199 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 23:51:19,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 23:51:19,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 23:51:19,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 23:51:19,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 23:51:19,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 23:51:19,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 23:51:19,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 23:51:19,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 23:51:19,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 23:51:19,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 23:51:19,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 23:51:19,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 23:51:19,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 23:51:19,259 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 23:51:19,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 23:51:19,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 23:51:19,281 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 23:51:19,282 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 23:51:19,282 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label18.c [2019-09-07 23:51:19,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f254a0654/4df1a95ed07a467f86900821df92f57b/FLAG4e34b4104 [2019-09-07 23:51:21,945 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 23:51:21,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label18.c [2019-09-07 23:51:22,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f254a0654/4df1a95ed07a467f86900821df92f57b/FLAG4e34b4104 [2019-09-07 23:51:22,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f254a0654/4df1a95ed07a467f86900821df92f57b [2019-09-07 23:51:22,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 23:51:22,421 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 23:51:22,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 23:51:22,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 23:51:22,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 23:51:22,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:51:22" (1/1) ... [2019-09-07 23:51:22,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147ffb18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:22, skipping insertion in model container [2019-09-07 23:51:22,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:51:22" (1/1) ... [2019-09-07 23:51:22,441 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 23:51:23,714 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 23:51:37,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 23:51:37,778 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 23:51:47,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 23:51:47,923 INFO L192 MainTranslator]: Completed translation [2019-09-07 23:51:47,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47 WrapperNode [2019-09-07 23:51:47,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 23:51:47,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 23:51:47,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 23:51:47,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 23:51:47,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ... [2019-09-07 23:51:47,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ... [2019-09-07 23:51:49,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ... [2019-09-07 23:51:49,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ... [2019-09-07 23:51:50,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ... [2019-09-07 23:51:50,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ... [2019-09-07 23:51:51,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ... [2019-09-07 23:51:51,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 23:51:51,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 23:51:51,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 23:51:51,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 23:51:51,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (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 23:51:51,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 23:51:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 23:51:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 23:51:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 23:51:51,578 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 23:51:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 23:51:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-09-07 23:51:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2019-09-07 23:51:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2019-09-07 23:51:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2019-09-07 23:51:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2019-09-07 23:51:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2019-09-07 23:51:51,582 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2019-09-07 23:51:51,582 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2019-09-07 23:51:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2019-09-07 23:51:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2019-09-07 23:51:51,587 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2019-09-07 23:51:51,587 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2019-09-07 23:51:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2019-09-07 23:51:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2019-09-07 23:51:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2019-09-07 23:51:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2019-09-07 23:51:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2019-09-07 23:51:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2019-09-07 23:51:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2019-09-07 23:51:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2019-09-07 23:51:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2019-09-07 23:51:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2019-09-07 23:51:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2019-09-07 23:51:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2019-09-07 23:51:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2019-09-07 23:51:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2019-09-07 23:51:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2019-09-07 23:51:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2019-09-07 23:51:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2019-09-07 23:51:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2019-09-07 23:51:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2019-09-07 23:51:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2019-09-07 23:51:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2019-09-07 23:51:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2019-09-07 23:51:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2019-09-07 23:51:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2019-09-07 23:51:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2019-09-07 23:51:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2019-09-07 23:51:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2019-09-07 23:51:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2019-09-07 23:51:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2019-09-07 23:51:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2019-09-07 23:51:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 23:51:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 23:51:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 23:51:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 23:51:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 23:51:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-09-07 23:51:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2019-09-07 23:51:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2019-09-07 23:51:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2019-09-07 23:51:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2019-09-07 23:51:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2019-09-07 23:51:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2019-09-07 23:51:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2019-09-07 23:51:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2019-09-07 23:51:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2019-09-07 23:51:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2019-09-07 23:51:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2019-09-07 23:51:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2019-09-07 23:51:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2019-09-07 23:51:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2019-09-07 23:51:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2019-09-07 23:51:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2019-09-07 23:51:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2019-09-07 23:51:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2019-09-07 23:51:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2019-09-07 23:51:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2019-09-07 23:51:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2019-09-07 23:51:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2019-09-07 23:51:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2019-09-07 23:51:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2019-09-07 23:51:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2019-09-07 23:51:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2019-09-07 23:51:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2019-09-07 23:51:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2019-09-07 23:51:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2019-09-07 23:51:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2019-09-07 23:51:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2019-09-07 23:51:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2019-09-07 23:51:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2019-09-07 23:51:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2019-09-07 23:51:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2019-09-07 23:51:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2019-09-07 23:51:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2019-09-07 23:51:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2019-09-07 23:51:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2019-09-07 23:51:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2019-09-07 23:51:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2019-09-07 23:51:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 23:51:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 23:51:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 23:51:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 23:51:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 23:51:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 23:52:39,356 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 23:52:39,357 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 23:52:39,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:52:39 BoogieIcfgContainer [2019-09-07 23:52:39,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 23:52:39,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 23:52:39,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 23:52:39,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 23:52:39,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 11:51:22" (1/3) ... [2019-09-07 23:52:39,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2a6416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:52:39, skipping insertion in model container [2019-09-07 23:52:39,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (2/3) ... [2019-09-07 23:52:39,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2a6416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:52:39, skipping insertion in model container [2019-09-07 23:52:39,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:52:39" (3/3) ... [2019-09-07 23:52:39,370 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem101_label18.c [2019-09-07 23:52:39,378 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 23:52:39,390 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 23:52:39,407 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 23:52:39,474 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 23:52:39,475 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 23:52:39,475 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 23:52:39,475 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 23:52:39,476 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 23:52:39,476 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 23:52:39,476 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 23:52:39,476 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 23:52:39,476 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 23:52:39,620 INFO L276 IsEmpty]: Start isEmpty. Operand 10446 states. [2019-09-07 23:52:41,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10194 [2019-09-07 23:52:41,151 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:52:41,160 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] [2019-09-07 23:52:41,163 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:52:41,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:52:41,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1793868805, now seen corresponding path program 1 times [2019-09-07 23:52:41,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:52:41,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:52:41,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:52:41,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:52:41,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:52:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:54:20,609 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 23:54:20,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:54:20,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 23:54:20,638 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 23:54:20,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 23:54:20,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 23:54:20,655 INFO L87 Difference]: Start difference. First operand 10446 states. Second operand 3 states. [2019-09-07 23:55:20,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:55:20,368 INFO L93 Difference]: Finished difference Result 31264 states and 61877 transitions. [2019-09-07 23:55:20,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 23:55:20,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10193 [2019-09-07 23:55:20,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:55:20,595 INFO L225 Difference]: With dead ends: 31264 [2019-09-07 23:55:20,596 INFO L226 Difference]: Without dead ends: 20756 [2019-09-07 23:55:20,650 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 48 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 23:55:20,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20756 states. [2019-09-07 23:55:21,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756. [2019-09-07 23:55:21,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20756 states. [2019-09-07 23:55:21,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 39358 transitions. [2019-09-07 23:55:21,475 INFO L78 Accepts]: Start accepts. Automaton has 20756 states and 39358 transitions. Word has length 10193 [2019-09-07 23:55:21,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:55:21,506 INFO L475 AbstractCegarLoop]: Abstraction has 20756 states and 39358 transitions. [2019-09-07 23:55:21,506 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 23:55:21,506 INFO L276 IsEmpty]: Start isEmpty. Operand 20756 states and 39358 transitions. [2019-09-07 23:55:22,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10205 [2019-09-07 23:55:22,560 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:55:22,567 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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] [2019-09-07 23:55:22,568 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:55:22,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:55:22,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1624284323, now seen corresponding path program 1 times [2019-09-07 23:55:22,573 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:55:22,573 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:55:22,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:55:22,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:55:22,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:55:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:55:58,533 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:55:58,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:55:58,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 23:55:58,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 23:55:58,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 23:55:58,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 23:55:58,546 INFO L87 Difference]: Start difference. First operand 20756 states and 39358 transitions. Second operand 6 states. [2019-09-07 23:57:12,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:57:12,586 INFO L93 Difference]: Finished difference Result 63316 states and 120135 transitions. [2019-09-07 23:57:12,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 23:57:12,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10204 [2019-09-07 23:57:12,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:57:12,754 INFO L225 Difference]: With dead ends: 63316 [2019-09-07 23:57:12,754 INFO L226 Difference]: Without dead ends: 42566 [2019-09-07 23:57:12,800 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 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 23:57:12,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42566 states. [2019-09-07 23:57:13,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42566 to 42284. [2019-09-07 23:57:13,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42284 states. [2019-09-07 23:57:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42284 states to 42284 states and 78731 transitions. [2019-09-07 23:57:13,844 INFO L78 Accepts]: Start accepts. Automaton has 42284 states and 78731 transitions. Word has length 10204 [2019-09-07 23:57:13,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:57:13,846 INFO L475 AbstractCegarLoop]: Abstraction has 42284 states and 78731 transitions. [2019-09-07 23:57:13,847 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 23:57:13,847 INFO L276 IsEmpty]: Start isEmpty. Operand 42284 states and 78731 transitions. [2019-09-07 23:57:17,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10232 [2019-09-07 23:57:17,735 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:57:17,740 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2019-09-07 23:57:17,741 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:57:17,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:57:17,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1280508237, now seen corresponding path program 1 times [2019-09-07 23:57:17,744 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:57:17,744 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:57:17,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:57:17,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:57:17,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:57:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:57:48,961 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:57:48,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:57:48,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 23:57:48,969 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 23:57:48,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 23:57:48,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 23:57:48,969 INFO L87 Difference]: Start difference. First operand 42284 states and 78731 transitions. Second operand 6 states. [2019-09-07 23:59:04,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:59:04,137 INFO L93 Difference]: Finished difference Result 106405 states and 197995 transitions. [2019-09-07 23:59:04,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 23:59:04,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10231 [2019-09-07 23:59:04,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:59:04,303 INFO L225 Difference]: With dead ends: 106405 [2019-09-07 23:59:04,304 INFO L226 Difference]: Without dead ends: 64127 [2019-09-07 23:59:04,362 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 23:59:04,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64127 states. [2019-09-07 23:59:05,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64127 to 64119. [2019-09-07 23:59:05,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64119 states. [2019-09-07 23:59:05,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64119 states to 64119 states and 100798 transitions. [2019-09-07 23:59:05,751 INFO L78 Accepts]: Start accepts. Automaton has 64119 states and 100798 transitions. Word has length 10231 [2019-09-07 23:59:05,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:59:05,753 INFO L475 AbstractCegarLoop]: Abstraction has 64119 states and 100798 transitions. [2019-09-07 23:59:05,753 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 23:59:05,753 INFO L276 IsEmpty]: Start isEmpty. Operand 64119 states and 100798 transitions. [2019-09-07 23:59:06,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10240 [2019-09-07 23:59:06,408 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:59:06,414 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2019-09-07 23:59:06,414 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:59:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:59:06,418 INFO L82 PathProgramCache]: Analyzing trace with hash 655598617, now seen corresponding path program 1 times [2019-09-07 23:59:06,419 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:59:06,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:59:06,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:59:06,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:59:06,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:59:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:59:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:59:41,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 23:59:41,684 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 23:59:41,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:59:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:59:44,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 12381 conjuncts, 94 conjunts are in the unsatisfiable core [2019-09-07 23:59:45,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 00:00:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-08 00:00:53,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 00:00:53,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-09-08 00:00:53,144 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 00:00:53,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 00:00:53,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-08 00:00:53,146 INFO L87 Difference]: Start difference. First operand 64119 states and 100798 transitions. Second operand 7 states. [2019-09-08 00:03:30,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 00:03:30,123 INFO L93 Difference]: Finished difference Result 329584 states and 554932 transitions. [2019-09-08 00:03:30,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 00:03:30,129 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10239 [2019-09-08 00:03:30,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 00:03:31,196 INFO L225 Difference]: With dead ends: 329584 [2019-09-08 00:03:31,196 INFO L226 Difference]: Without dead ends: 265471 [2019-09-08 00:03:31,373 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10262 GetRequests, 10248 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2019-09-08 00:03:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265471 states. [2019-09-08 00:03:41,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265471 to 265427. [2019-09-08 00:03:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265427 states. [2019-09-08 00:03:42,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265427 states to 265427 states and 380583 transitions. [2019-09-08 00:03:42,295 INFO L78 Accepts]: Start accepts. Automaton has 265427 states and 380583 transitions. Word has length 10239 [2019-09-08 00:03:42,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 00:03:42,299 INFO L475 AbstractCegarLoop]: Abstraction has 265427 states and 380583 transitions. [2019-09-08 00:03:42,300 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 00:03:42,300 INFO L276 IsEmpty]: Start isEmpty. Operand 265427 states and 380583 transitions.