/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:58:36,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:58:36,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:58:36,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:58:36,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:58:36,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:58:36,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:58:36,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:58:36,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:58:36,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:58:36,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:58:36,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:58:36,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:58:36,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:58:36,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:58:36,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:58:36,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:58:36,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:58:36,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:58:36,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:58:36,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:58:36,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:58:36,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:58:36,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:58:36,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:58:36,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:58:36,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:58:36,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:58:36,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:58:36,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:58:36,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:58:36,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:58:36,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:58:36,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:58:36,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:58:36,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:58:36,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:58:36,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:58:36,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:58:36,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:58:36,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:58:36,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:58:36,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:58:36,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:58:36,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:58:36,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:58:36,227 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:58:36,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:58:36,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:58:36,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:58:36,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:58:36,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:58:36,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:58:36,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:58:36,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:58:36,231 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:58:36,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:58:36,231 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:58:36,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:58:36,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:58:36,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:58:36,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:58:36,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:58:36,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:58:36,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:58:36,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:58:36,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:58:36,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:58:36,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:58:36,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:58:36,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:58:36,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:58:36,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:58:36,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:58:36,710 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:58:36,714 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:58:36,714 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:58:36,715 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-25 00:58:36,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1a9327a9/bdbda204de2740a8b192980feb7d628a/FLAGc64533ea2 [2020-09-25 00:58:37,495 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:58:37,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-25 00:58:37,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1a9327a9/bdbda204de2740a8b192980feb7d628a/FLAGc64533ea2 [2020-09-25 00:58:37,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1a9327a9/bdbda204de2740a8b192980feb7d628a [2020-09-25 00:58:37,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:58:37,722 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:58:37,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:58:37,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:58:37,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:58:37,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:58:37" (1/1) ... [2020-09-25 00:58:37,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ad693f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:37, skipping insertion in model container [2020-09-25 00:58:37,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:58:37" (1/1) ... [2020-09-25 00:58:37,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:58:37,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:58:38,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:58:38,285 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:58:38,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:58:38,393 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:58:38,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:38 WrapperNode [2020-09-25 00:58:38,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:58:38,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:58:38,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:58:38,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:58:38,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:38" (1/1) ... [2020-09-25 00:58:38,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:38" (1/1) ... [2020-09-25 00:58:38,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:38" (1/1) ... [2020-09-25 00:58:38,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:38" (1/1) ... [2020-09-25 00:58:38,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:38" (1/1) ... [2020-09-25 00:58:38,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:38" (1/1) ... [2020-09-25 00:58:38,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:38" (1/1) ... [2020-09-25 00:58:38,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:58:38,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:58:38,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:58:38,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:58:38,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-25 00:58:38,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:58:38,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:58:38,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:58:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 00:58:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 00:58:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 00:58:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 00:58:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 00:58:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 00:58:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 00:58:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 00:58:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 00:58:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 00:58:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 00:58:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 00:58:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 00:58:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 00:58:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 00:58:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 00:58:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 00:58:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 00:58:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 00:58:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 00:58:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 00:58:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 00:58:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 00:58:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 00:58:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 00:58:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 00:58:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 00:58:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 00:58:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 00:58:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 00:58:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 00:58:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 00:58:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 00:58:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 00:58:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 00:58:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 00:58:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 00:58:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 00:58:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 00:58:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 00:58:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 00:58:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 00:58:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 00:58:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 00:58:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 00:58:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 00:58:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 00:58:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 00:58:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 00:58:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 00:58:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:58:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 00:58:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 00:58:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:58:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 00:58:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 00:58:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 00:58:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 00:58:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 00:58:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 00:58:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 00:58:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 00:58:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 00:58:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 00:58:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 00:58:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 00:58:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 00:58:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 00:58:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 00:58:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 00:58:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 00:58:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 00:58:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 00:58:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 00:58:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 00:58:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 00:58:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 00:58:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 00:58:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 00:58:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 00:58:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 00:58:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 00:58:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 00:58:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 00:58:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 00:58:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 00:58:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 00:58:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 00:58:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 00:58:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 00:58:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 00:58:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 00:58:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 00:58:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 00:58:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 00:58:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 00:58:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 00:58:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 00:58:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 00:58:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 00:58:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 00:58:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 00:58:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 00:58:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:58:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:58:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:58:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:58:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:58:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:58:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:58:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:58:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:58:39,399 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:58:39,400 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-25 00:58:39,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:58:39 BoogieIcfgContainer [2020-09-25 00:58:39,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:58:39,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:58:39,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:58:39,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:58:39,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:58:37" (1/3) ... [2020-09-25 00:58:39,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b91ba34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:58:39, skipping insertion in model container [2020-09-25 00:58:39,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:38" (2/3) ... [2020-09-25 00:58:39,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b91ba34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:58:39, skipping insertion in model container [2020-09-25 00:58:39,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:58:39" (3/3) ... [2020-09-25 00:58:39,423 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-09-25 00:58:39,437 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:58:39,448 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-25 00:58:39,469 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-25 00:58:39,501 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:58:39,501 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:58:39,502 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:58:39,502 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:58:39,502 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:58:39,503 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:58:39,503 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:58:39,503 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:58:39,544 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-25 00:58:39,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-25 00:58:39,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:39,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:58:39,559 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:39,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:39,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1409190174, now seen corresponding path program 1 times [2020-09-25 00:58:39,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:39,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503970900] [2020-09-25 00:58:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:39,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:39,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:39,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 00:58:39,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:39,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 00:58:39,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:58:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 00:58:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:58:39,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:58:40,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:40,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:40,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:40,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:40,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:40,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:58:40,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:40,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:40,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:40,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503970900] [2020-09-25 00:58:40,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:40,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:58:40,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194338265] [2020-09-25 00:58:40,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:58:40,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:40,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:58:40,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:58:40,134 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-09-25 00:58:40,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:40,559 INFO L93 Difference]: Finished difference Result 359 states and 475 transitions. [2020-09-25 00:58:40,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:58:40,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-25 00:58:40,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:40,578 INFO L225 Difference]: With dead ends: 359 [2020-09-25 00:58:40,579 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 00:58:40,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:58:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 00:58:40,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-09-25 00:58:40,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-25 00:58:40,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2020-09-25 00:58:40,659 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 13 [2020-09-25 00:58:40,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:40,659 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2020-09-25 00:58:40,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:58:40,660 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2020-09-25 00:58:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 00:58:40,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:40,661 INFO L422 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] [2020-09-25 00:58:40,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:58:40,662 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:40,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:40,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1469410252, now seen corresponding path program 1 times [2020-09-25 00:58:40,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:40,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107567451] [2020-09-25 00:58:40,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:40,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:40,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:40,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:40,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 00:58:40,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:58:40,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-25 00:58:40,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:40,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:58:40,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 00:58:40,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:58:41,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:58:41,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:41,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:41,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:41,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:41,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:41,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:58:41,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:41,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:41,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:41,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:41,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107567451] [2020-09-25 00:58:41,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:41,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:58:41,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961701078] [2020-09-25 00:58:41,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:58:41,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:41,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:58:41,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:58:41,057 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand 4 states. [2020-09-25 00:58:41,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:41,377 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2020-09-25 00:58:41,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 00:58:41,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-09-25 00:58:41,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:41,383 INFO L225 Difference]: With dead ends: 170 [2020-09-25 00:58:41,383 INFO L226 Difference]: Without dead ends: 165 [2020-09-25 00:58:41,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:58:41,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-25 00:58:41,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-25 00:58:41,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 00:58:41,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 174 transitions. [2020-09-25 00:58:41,412 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 174 transitions. Word has length 25 [2020-09-25 00:58:41,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:41,412 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 174 transitions. [2020-09-25 00:58:41,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:58:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2020-09-25 00:58:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 00:58:41,417 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:41,417 INFO L422 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] [2020-09-25 00:58:41,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:58:41,418 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:41,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:41,419 INFO L82 PathProgramCache]: Analyzing trace with hash -155961871, now seen corresponding path program 1 times [2020-09-25 00:58:41,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:41,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329509943] [2020-09-25 00:58:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:41,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:41,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:41,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:41,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:58:41,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:58:41,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-25 00:58:41,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:58:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:58:41,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:58:41,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:58:42,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:42,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:42,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:42,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:42,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:42,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:58:42,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:42,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:42,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:42,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:42,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329509943] [2020-09-25 00:58:42,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:42,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:58:42,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314375746] [2020-09-25 00:58:42,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:58:42,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:42,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:58:42,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:58:42,033 INFO L87 Difference]: Start difference. First operand 165 states and 174 transitions. Second operand 8 states. [2020-09-25 00:58:42,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:42,558 INFO L93 Difference]: Finished difference Result 256 states and 271 transitions. [2020-09-25 00:58:42,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:58:42,559 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-09-25 00:58:42,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:42,561 INFO L225 Difference]: With dead ends: 256 [2020-09-25 00:58:42,562 INFO L226 Difference]: Without dead ends: 251 [2020-09-25 00:58:42,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:58:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-09-25 00:58:42,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 159. [2020-09-25 00:58:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-09-25 00:58:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 168 transitions. [2020-09-25 00:58:42,582 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 168 transitions. Word has length 27 [2020-09-25 00:58:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:42,582 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 168 transitions. [2020-09-25 00:58:42,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:58:42,583 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 168 transitions. [2020-09-25 00:58:42,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 00:58:42,584 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:42,584 INFO L422 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] [2020-09-25 00:58:42,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:58:42,585 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:42,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:42,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1500955686, now seen corresponding path program 1 times [2020-09-25 00:58:42,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:42,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615495117] [2020-09-25 00:58:42,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:42,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:42,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:42,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:42,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:43,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:43,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 00:58:43,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:58:43,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-09-25 00:58:43,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:43,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:58:43,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 00:58:43,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:58:43,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:43,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:43,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:43,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:43,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:43,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:43,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:58:43,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:43,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:43,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:43,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:43,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:43,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:43,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615495117] [2020-09-25 00:58:43,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:43,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:58:43,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506129579] [2020-09-25 00:58:43,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:58:43,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:43,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:58:43,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:58:43,249 INFO L87 Difference]: Start difference. First operand 159 states and 168 transitions. Second operand 6 states. [2020-09-25 00:58:43,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:43,623 INFO L93 Difference]: Finished difference Result 377 states and 399 transitions. [2020-09-25 00:58:43,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:58:43,623 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 00:58:43,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:43,625 INFO L225 Difference]: With dead ends: 377 [2020-09-25 00:58:43,625 INFO L226 Difference]: Without dead ends: 249 [2020-09-25 00:58:43,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:58:43,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-25 00:58:43,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 162. [2020-09-25 00:58:43,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-25 00:58:43,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 171 transitions. [2020-09-25 00:58:43,638 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 171 transitions. Word has length 33 [2020-09-25 00:58:43,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:43,638 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 171 transitions. [2020-09-25 00:58:43,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:58:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 171 transitions. [2020-09-25 00:58:43,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 00:58:43,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:43,640 INFO L422 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] [2020-09-25 00:58:43,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:58:43,640 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:43,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:43,641 INFO L82 PathProgramCache]: Analyzing trace with hash -820684573, now seen corresponding path program 1 times [2020-09-25 00:58:43,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:43,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706889398] [2020-09-25 00:58:43,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:43,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:43,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:43,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:43,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 00:58:43,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:58:43,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-25 00:58:43,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:58:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 00:58:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 00:58:43,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:43,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:43,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:43,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:43,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:43,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:43,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:58:43,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:43,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:43,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:43,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:43,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:43,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:43,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706889398] [2020-09-25 00:58:43,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:43,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:58:43,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472222493] [2020-09-25 00:58:43,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:58:43,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:43,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:58:43,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:58:43,986 INFO L87 Difference]: Start difference. First operand 162 states and 171 transitions. Second operand 5 states. [2020-09-25 00:58:44,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:44,394 INFO L93 Difference]: Finished difference Result 192 states and 204 transitions. [2020-09-25 00:58:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:58:44,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-09-25 00:58:44,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:44,397 INFO L225 Difference]: With dead ends: 192 [2020-09-25 00:58:44,397 INFO L226 Difference]: Without dead ends: 158 [2020-09-25 00:58:44,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:58:44,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-25 00:58:44,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2020-09-25 00:58:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 00:58:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 166 transitions. [2020-09-25 00:58:44,407 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 166 transitions. Word has length 35 [2020-09-25 00:58:44,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:44,407 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 166 transitions. [2020-09-25 00:58:44,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:58:44,407 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 166 transitions. [2020-09-25 00:58:44,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 00:58:44,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:44,409 INFO L422 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] [2020-09-25 00:58:44,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:58:44,410 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:44,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:44,411 INFO L82 PathProgramCache]: Analyzing trace with hash -2091807586, now seen corresponding path program 1 times [2020-09-25 00:58:44,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:44,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414347772] [2020-09-25 00:58:44,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:44,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:44,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:44,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:45,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:45,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 00:58:45,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:58:45,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1408 [2020-09-25 00:58:45,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:45,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:58:45,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 00:58:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:58:45,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:58:46,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:46,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:46,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:46,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:46,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:46,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:58:46,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:46,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:46,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:58:46,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:46,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414347772] [2020-09-25 00:58:46,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:46,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:58:46,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386927982] [2020-09-25 00:58:46,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:58:46,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:46,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:58:46,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:58:46,106 INFO L87 Difference]: Start difference. First operand 157 states and 166 transitions. Second operand 9 states. [2020-09-25 00:58:47,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:47,328 INFO L93 Difference]: Finished difference Result 238 states and 252 transitions. [2020-09-25 00:58:47,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:58:47,329 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-09-25 00:58:47,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:47,331 INFO L225 Difference]: With dead ends: 238 [2020-09-25 00:58:47,332 INFO L226 Difference]: Without dead ends: 236 [2020-09-25 00:58:47,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:58:47,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-09-25 00:58:47,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 155. [2020-09-25 00:58:47,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 00:58:47,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 164 transitions. [2020-09-25 00:58:47,342 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 164 transitions. Word has length 42 [2020-09-25 00:58:47,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:47,342 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 164 transitions. [2020-09-25 00:58:47,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:58:47,343 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 164 transitions. [2020-09-25 00:58:47,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 00:58:47,347 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:47,347 INFO L422 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] [2020-09-25 00:58:47,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:58:47,347 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:47,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:47,350 INFO L82 PathProgramCache]: Analyzing trace with hash 654436304, now seen corresponding path program 1 times [2020-09-25 00:58:47,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:47,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185139670] [2020-09-25 00:58:47,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:47,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:47,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:47,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 00:58:47,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:47,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 00:58:47,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:58:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 00:58:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:58:47,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:58:47,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:47,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:47,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:47,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:47,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:47,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:58:47,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:47,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:47,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:47,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:47,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:47,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:47,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185139670] [2020-09-25 00:58:47,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:47,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:58:47,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954215130] [2020-09-25 00:58:47,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:58:47,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:47,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:58:47,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:58:47,503 INFO L87 Difference]: Start difference. First operand 155 states and 164 transitions. Second operand 4 states. [2020-09-25 00:58:47,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:47,715 INFO L93 Difference]: Finished difference Result 195 states and 208 transitions. [2020-09-25 00:58:47,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 00:58:47,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-09-25 00:58:47,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:47,717 INFO L225 Difference]: With dead ends: 195 [2020-09-25 00:58:47,717 INFO L226 Difference]: Without dead ends: 193 [2020-09-25 00:58:47,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:58:47,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-25 00:58:47,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 157. [2020-09-25 00:58:47,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 00:58:47,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 167 transitions. [2020-09-25 00:58:47,726 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 167 transitions. Word has length 43 [2020-09-25 00:58:47,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:47,727 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 167 transitions. [2020-09-25 00:58:47,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:58:47,727 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 167 transitions. [2020-09-25 00:58:47,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 00:58:47,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:47,730 INFO L422 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] [2020-09-25 00:58:47,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:58:47,730 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:47,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:47,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1847672787, now seen corresponding path program 1 times [2020-09-25 00:58:47,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:47,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867947912] [2020-09-25 00:58:47,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:47,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:47,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:47,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:47,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:48,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:48,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 00:58:48,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:58:48,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 927 [2020-09-25 00:58:48,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:48,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:58:48,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 00:58:48,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:58:48,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:48,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:48,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:48,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:48,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:48,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:48,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:58:48,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:48,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:48,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:48,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:48,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:58:48,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:48,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867947912] [2020-09-25 00:58:48,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:48,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:58:48,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652885099] [2020-09-25 00:58:48,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:58:48,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:48,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:58:48,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:58:48,766 INFO L87 Difference]: Start difference. First operand 157 states and 167 transitions. Second operand 4 states. [2020-09-25 00:58:48,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:48,978 INFO L93 Difference]: Finished difference Result 157 states and 167 transitions. [2020-09-25 00:58:48,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 00:58:48,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-09-25 00:58:48,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:48,981 INFO L225 Difference]: With dead ends: 157 [2020-09-25 00:58:48,981 INFO L226 Difference]: Without dead ends: 155 [2020-09-25 00:58:48,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:58:48,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-25 00:58:48,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2020-09-25 00:58:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 00:58:48,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 165 transitions. [2020-09-25 00:58:48,989 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 165 transitions. Word has length 45 [2020-09-25 00:58:48,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:48,989 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 165 transitions. [2020-09-25 00:58:48,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:58:48,990 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 165 transitions. [2020-09-25 00:58:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-25 00:58:48,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:48,994 INFO L422 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] [2020-09-25 00:58:48,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:58:48,995 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:48,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:48,995 INFO L82 PathProgramCache]: Analyzing trace with hash 11890970, now seen corresponding path program 1 times [2020-09-25 00:58:48,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:48,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40154842] [2020-09-25 00:58:48,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:49,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:49,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:49,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:49,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:49,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:49,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:50,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:50,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 00:58:50,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:58:50,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1964 [2020-09-25 00:58:50,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:58:50,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 00:58:50,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 00:58:50,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:58:51,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:51,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:51,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:51,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:51,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:58:51,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:51,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:51,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:58:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:51,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40154842] [2020-09-25 00:58:51,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:51,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:58:51,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845363758] [2020-09-25 00:58:51,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:58:51,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:51,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:58:51,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:58:51,168 INFO L87 Difference]: Start difference. First operand 155 states and 165 transitions. Second operand 9 states. [2020-09-25 00:58:52,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:52,002 INFO L93 Difference]: Finished difference Result 341 states and 365 transitions. [2020-09-25 00:58:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:58:52,003 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-09-25 00:58:52,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:52,007 INFO L225 Difference]: With dead ends: 341 [2020-09-25 00:58:52,007 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 00:58:52,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:58:52,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 00:58:52,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 174. [2020-09-25 00:58:52,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-25 00:58:52,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 185 transitions. [2020-09-25 00:58:52,026 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 185 transitions. Word has length 49 [2020-09-25 00:58:52,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:52,026 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 185 transitions. [2020-09-25 00:58:52,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:58:52,027 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 185 transitions. [2020-09-25 00:58:52,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 00:58:52,031 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:52,031 INFO L422 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] [2020-09-25 00:58:52,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:58:52,032 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:52,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:52,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1643041774, now seen corresponding path program 1 times [2020-09-25 00:58:52,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:52,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876997664] [2020-09-25 00:58:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:52,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:52,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:52,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:53,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:55,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:55,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:55,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:58:55,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:58:55,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3417 [2020-09-25 00:58:55,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:58:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 00:58:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:58:55,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:58:55,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:55,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:55,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:55,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:55,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:55,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:58:55,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:55,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:55,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876997664] [2020-09-25 00:58:55,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:55,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 00:58:55,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108840666] [2020-09-25 00:58:55,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 00:58:55,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:55,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 00:58:55,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:58:55,742 INFO L87 Difference]: Start difference. First operand 174 states and 185 transitions. Second operand 12 states. [2020-09-25 00:58:56,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:56,850 INFO L93 Difference]: Finished difference Result 438 states and 467 transitions. [2020-09-25 00:58:56,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 00:58:56,850 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-09-25 00:58:56,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:56,856 INFO L225 Difference]: With dead ends: 438 [2020-09-25 00:58:56,856 INFO L226 Difference]: Without dead ends: 435 [2020-09-25 00:58:56,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2020-09-25 00:58:56,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-09-25 00:58:56,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 194. [2020-09-25 00:58:56,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-09-25 00:58:56,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 208 transitions. [2020-09-25 00:58:56,872 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 208 transitions. Word has length 54 [2020-09-25 00:58:56,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:56,872 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 208 transitions. [2020-09-25 00:58:56,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 00:58:56,873 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 208 transitions. [2020-09-25 00:58:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 00:58:56,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:56,874 INFO L422 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] [2020-09-25 00:58:56,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 00:58:56,874 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:56,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:56,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1270543956, now seen corresponding path program 1 times [2020-09-25 00:58:56,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:56,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67301608] [2020-09-25 00:58:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:56,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:56,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:57,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:57,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 00:58:57,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:58:57,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 00:58:57,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:57,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:58:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 00:58:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:58:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:57,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:57,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:57,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:57,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:58:57,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:57,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:58:57,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:57,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:58:57,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:57,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67301608] [2020-09-25 00:58:57,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:57,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:58:57,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316013668] [2020-09-25 00:58:57,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:58:57,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:57,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:58:57,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:58:57,223 INFO L87 Difference]: Start difference. First operand 194 states and 208 transitions. Second operand 4 states. [2020-09-25 00:58:57,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:57,464 INFO L93 Difference]: Finished difference Result 200 states and 214 transitions. [2020-09-25 00:58:57,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 00:58:57,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-09-25 00:58:57,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:57,466 INFO L225 Difference]: With dead ends: 200 [2020-09-25 00:58:57,466 INFO L226 Difference]: Without dead ends: 195 [2020-09-25 00:58:57,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:58:57,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-25 00:58:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-25 00:58:57,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-25 00:58:57,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 209 transitions. [2020-09-25 00:58:57,480 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 209 transitions. Word has length 56 [2020-09-25 00:58:57,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:57,481 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 209 transitions. [2020-09-25 00:58:57,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:58:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 209 transitions. [2020-09-25 00:58:57,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 00:58:57,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:57,482 INFO L422 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] [2020-09-25 00:58:57,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 00:58:57,483 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:57,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:57,483 INFO L82 PathProgramCache]: Analyzing trace with hash 2002844954, now seen corresponding path program 1 times [2020-09-25 00:58:57,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:57,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873273657] [2020-09-25 00:58:57,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:58:57,514 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:58:57,514 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:58:57,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 00:58:57,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:58:57 BoogieIcfgContainer [2020-09-25 00:58:57,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:58:57,583 INFO L168 Benchmark]: Toolchain (without parser) took 19862.90 ms. Allocated memory was 140.5 MB in the beginning and 388.0 MB in the end (delta: 247.5 MB). Free memory was 102.8 MB in the beginning and 336.4 MB in the end (delta: -233.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:58:57,584 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 00:58:57,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.06 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 170.3 MB in the end (delta: -68.1 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:58:57,585 INFO L168 Benchmark]: Boogie Preprocessor took 82.15 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 166.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-25 00:58:57,588 INFO L168 Benchmark]: RCFGBuilder took 928.72 ms. Allocated memory is still 203.9 MB. Free memory was 166.9 MB in the beginning and 104.0 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:58:57,589 INFO L168 Benchmark]: TraceAbstraction took 18161.44 ms. Allocated memory was 203.9 MB in the beginning and 388.0 MB in the end (delta: 184.0 MB). Free memory was 103.4 MB in the beginning and 336.4 MB in the end (delta: -233.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 00:58:57,595 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.06 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 170.3 MB in the end (delta: -68.1 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.15 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 166.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 928.72 ms. Allocated memory is still 203.9 MB. Free memory was 166.9 MB in the beginning and 104.0 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18161.44 ms. Allocated memory was 203.9 MB in the beginning and 388.0 MB in the end (delta: 184.0 MB). Free memory was 103.4 MB in the beginning and 336.4 MB in the end (delta: -233.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1029]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* list = malloc(sizeof(SLL)); [L993] list->next = ((void*)0) [L994] list->prev = ((void*)0) [L995] COND FALSE !(!(list != ((void*)0))) [L995] COND FALSE !(__VERIFIER_nondet_int()) [L995] list->inner = malloc(sizeof(SLL)) [L995] EXPR list->inner [L995] list->inner->next = ((void*)0) [L995] EXPR list->inner [L995] list->inner->inner = ((void*)0) [L995] EXPR list->inner [L995] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L995] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L997] SLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1011] end = ((void*)0) [L1012] end = list [L1015] COND FALSE !(!(((void*)0) != end)) [L1017] COND TRUE ((void*)0) != end [L1019] int len = 0; [L1020] EXPR end->inner [L1020] SLL* inner = end->inner; [L1021] COND TRUE ((void*)0) != inner [L1023] COND TRUE len == 0 [L1024] len = 1 [L1027] COND FALSE !(!(((void*)0) != inner)) [L1028] EXPR inner->inner [L1028] COND FALSE !(!(((void*)0) == inner->inner)) [L1029] EXPR inner->next [L1029] COND TRUE !(((void*)0) != inner->next) [L1029] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 171 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.0s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1788 SDtfs, 2274 SDslu, 4394 SDs, 0 SdLazy, 3353 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 670 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 480 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 411 ConstructedInterpolants, 0 QuantifiedInterpolants, 116492 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...