/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-token-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 22:44:57,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 22:44:57,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 22:44:57,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 22:44:57,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 22:44:57,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 22:44:57,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 22:44:57,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 22:44:57,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 22:44:57,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 22:44:57,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 22:44:57,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 22:44:57,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 22:44:57,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 22:44:57,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 22:44:57,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 22:44:57,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 22:44:57,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 22:44:57,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 22:44:57,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 22:44:57,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 22:44:57,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 22:44:57,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 22:44:57,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 22:44:57,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 22:44:57,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 22:44:57,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 22:44:57,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 22:44:57,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 22:44:57,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 22:44:57,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 22:44:57,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 22:44:57,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 22:44:57,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 22:44:57,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 22:44:57,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 22:44:57,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 22:44:57,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 22:44:57,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 22:44:57,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 22:44:57,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 22:44:57,748 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 [2020-08-18 22:44:57,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 22:44:57,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 22:44:57,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 22:44:57,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 22:44:57,776 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 22:44:57,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 22:44:57,776 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 22:44:57,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 22:44:57,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 22:44:57,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 22:44:57,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 22:44:57,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 22:44:57,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 22:44:57,778 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 22:44:57,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 22:44:57,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 22:44:57,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 22:44:57,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 22:44:57,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 22:44:57,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 22:44:57,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 22:44:57,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 22:44:57,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 22:44:57,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 22:44:57,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 22:44:57,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 22:44:57,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 22:44:57,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 22:44:57,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 22:44:57,783 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; [2020-08-18 22:44:58,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 22:44:58,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 22:44:58,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 22:44:58,107 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 22:44:58,108 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 22:44:58,109 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-token-2.i [2020-08-18 22:44:58,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7f99f731/01256858876143778ce5503960c97793/FLAG6f0123d13 [2020-08-18 22:44:58,726 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 22:44:58,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-token-2.i [2020-08-18 22:44:58,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7f99f731/01256858876143778ce5503960c97793/FLAG6f0123d13 [2020-08-18 22:44:59,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7f99f731/01256858876143778ce5503960c97793 [2020-08-18 22:44:59,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 22:44:59,034 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 22:44:59,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 22:44:59,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 22:44:59,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 22:44:59,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:44:59" (1/1) ... [2020-08-18 22:44:59,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220aa344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59, skipping insertion in model container [2020-08-18 22:44:59,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:44:59" (1/1) ... [2020-08-18 22:44:59,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 22:44:59,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 22:44:59,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:44:59,572 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 22:44:59,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:44:59,682 INFO L208 MainTranslator]: Completed translation [2020-08-18 22:44:59,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59 WrapperNode [2020-08-18 22:44:59,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 22:44:59,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 22:44:59,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 22:44:59,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 22:44:59,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59" (1/1) ... [2020-08-18 22:44:59,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59" (1/1) ... [2020-08-18 22:44:59,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59" (1/1) ... [2020-08-18 22:44:59,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59" (1/1) ... [2020-08-18 22:44:59,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59" (1/1) ... [2020-08-18 22:44:59,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59" (1/1) ... [2020-08-18 22:44:59,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59" (1/1) ... [2020-08-18 22:44:59,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 22:44:59,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 22:44:59,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 22:44:59,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 22:44:59,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59" (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 [2020-08-18 22:44:59,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 22:44:59,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 22:44:59,812 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 22:44:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-18 22:44:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-18 22:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-18 22:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-18 22:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-18 22:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-18 22:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-18 22:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-18 22:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-18 22:44:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-18 22:44:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-18 22:44:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-18 22:44:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-18 22:44:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-18 22:44:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-18 22:44:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-18 22:44:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-18 22:44:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-18 22:44:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-18 22:44:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-18 22:44:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-18 22:44:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-18 22:44:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-18 22:44:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-18 22:44:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-18 22:44:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-18 22:44:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-18 22:44:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-18 22:44:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-18 22:44:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-18 22:44:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-18 22:44:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-18 22:44:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-18 22:44:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-18 22:44:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-18 22:44:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-18 22:44:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-18 22:44:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-18 22:44:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-18 22:44:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-18 22:44:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-18 22:44:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-18 22:44:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-18 22:44:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-18 22:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-18 22:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-18 22:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-18 22:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-18 22:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-18 22:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-18 22:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 22:44:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 22:44:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-18 22:44:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 22:44:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-18 22:44:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-18 22:44:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-18 22:44:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-18 22:44:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-18 22:44:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 22:44:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-18 22:44:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-18 22:44:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-18 22:44:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 22:44:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-18 22:44:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-18 22:44:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-18 22:44:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-18 22:44:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-18 22:44:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-18 22:44:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-18 22:44:59,828 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-18 22:44:59,828 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-18 22:44:59,829 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-18 22:44:59,829 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-18 22:44:59,829 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-18 22:44:59,830 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-18 22:44:59,830 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-18 22:44:59,830 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-18 22:44:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-18 22:44:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-18 22:44:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-18 22:44:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-18 22:44:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-18 22:44:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-18 22:44:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-18 22:44:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-18 22:44:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-18 22:44:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-18 22:44:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-18 22:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-18 22:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-18 22:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-18 22:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-18 22:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-18 22:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-18 22:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-18 22:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-18 22:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-18 22:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-18 22:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-18 22:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-18 22:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-18 22:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 22:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 22:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 22:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 22:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 22:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 22:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 22:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 22:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 22:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 22:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 22:45:00,470 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 22:45:00,471 INFO L295 CfgBuilder]: Removed 15 assume(true) statements. [2020-08-18 22:45:00,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:45:00 BoogieIcfgContainer [2020-08-18 22:45:00,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 22:45:00,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 22:45:00,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 22:45:00,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 22:45:00,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:44:59" (1/3) ... [2020-08-18 22:45:00,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147bc4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:45:00, skipping insertion in model container [2020-08-18 22:45:00,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:59" (2/3) ... [2020-08-18 22:45:00,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147bc4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:45:00, skipping insertion in model container [2020-08-18 22:45:00,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:45:00" (3/3) ... [2020-08-18 22:45:00,483 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2020-08-18 22:45:00,492 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 22:45:00,498 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-08-18 22:45:00,513 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-08-18 22:45:00,538 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 22:45:00,538 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 22:45:00,538 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 22:45:00,538 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 22:45:00,538 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 22:45:00,539 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 22:45:00,539 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 22:45:00,539 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 22:45:00,558 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-08-18 22:45:00,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-18 22:45:00,564 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:45:00,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:45:00,566 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:45:00,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:45:00,571 INFO L82 PathProgramCache]: Analyzing trace with hash 68430596, now seen corresponding path program 1 times [2020-08-18 22:45:00,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:45:00,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587121769] [2020-08-18 22:45:00,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:45:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:45:00,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:45:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:45:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:45:00,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587121769] [2020-08-18 22:45:00,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:45:00,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 22:45:00,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151323089] [2020-08-18 22:45:00,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 22:45:00,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:45:00,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 22:45:00,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 22:45:00,785 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 3 states. [2020-08-18 22:45:00,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:45:00,977 INFO L93 Difference]: Finished difference Result 92 states and 138 transitions. [2020-08-18 22:45:00,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 22:45:00,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-08-18 22:45:00,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:45:01,012 INFO L225 Difference]: With dead ends: 92 [2020-08-18 22:45:01,012 INFO L226 Difference]: Without dead ends: 43 [2020-08-18 22:45:01,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 22:45:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-18 22:45:01,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-08-18 22:45:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-18 22:45:01,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2020-08-18 22:45:01,060 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 10 [2020-08-18 22:45:01,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:45:01,061 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2020-08-18 22:45:01,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 22:45:01,061 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2020-08-18 22:45:01,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-18 22:45:01,062 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:45:01,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:45:01,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 22:45:01,063 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:45:01,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:45:01,063 INFO L82 PathProgramCache]: Analyzing trace with hash 67663975, now seen corresponding path program 1 times [2020-08-18 22:45:01,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:45:01,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630747106] [2020-08-18 22:45:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:45:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:45:01,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:45:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:45:01,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:45:01,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630747106] [2020-08-18 22:45:01,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:45:01,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 22:45:01,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463955165] [2020-08-18 22:45:01,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:45:01,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:45:01,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:45:01,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:45:01,211 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 5 states. [2020-08-18 22:45:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:45:01,397 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2020-08-18 22:45:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 22:45:01,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-08-18 22:45:01,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:45:01,399 INFO L225 Difference]: With dead ends: 43 [2020-08-18 22:45:01,399 INFO L226 Difference]: Without dead ends: 41 [2020-08-18 22:45:01,400 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 [2020-08-18 22:45:01,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-08-18 22:45:01,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-08-18 22:45:01,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-08-18 22:45:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2020-08-18 22:45:01,408 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 10 [2020-08-18 22:45:01,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:45:01,409 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2020-08-18 22:45:01,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:45:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-08-18 22:45:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-18 22:45:01,410 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:45:01,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:45:01,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 22:45:01,410 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:45:01,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:45:01,411 INFO L82 PathProgramCache]: Analyzing trace with hash 2097539711, now seen corresponding path program 1 times [2020-08-18 22:45:01,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:45:01,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151354246] [2020-08-18 22:45:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:45:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:45:01,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:45:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:45:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:45:01,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151354246] [2020-08-18 22:45:01,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:45:01,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 22:45:01,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280017748] [2020-08-18 22:45:01,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:45:01,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:45:01,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:45:01,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:45:01,496 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 5 states. [2020-08-18 22:45:01,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:45:01,631 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2020-08-18 22:45:01,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 22:45:01,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-08-18 22:45:01,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:45:01,636 INFO L225 Difference]: With dead ends: 67 [2020-08-18 22:45:01,637 INFO L226 Difference]: Without dead ends: 65 [2020-08-18 22:45:01,637 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 [2020-08-18 22:45:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-08-18 22:45:01,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 39. [2020-08-18 22:45:01,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-08-18 22:45:01,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-08-18 22:45:01,655 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2020-08-18 22:45:01,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:45:01,655 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-08-18 22:45:01,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:45:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-08-18 22:45:01,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-18 22:45:01,663 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:45:01,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:45:01,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 22:45:01,664 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:45:01,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:45:01,664 INFO L82 PathProgramCache]: Analyzing trace with hash -409997773, now seen corresponding path program 1 times [2020-08-18 22:45:01,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:45:01,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080957069] [2020-08-18 22:45:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:45:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:45:01,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:45:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:45:01,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:45:01,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080957069] [2020-08-18 22:45:01,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:45:01,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 22:45:01,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987719015] [2020-08-18 22:45:01,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 22:45:01,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:45:01,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 22:45:01,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:45:01,803 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2020-08-18 22:45:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:45:01,949 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-08-18 22:45:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 22:45:01,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-18 22:45:01,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:45:01,950 INFO L225 Difference]: With dead ends: 39 [2020-08-18 22:45:01,951 INFO L226 Difference]: Without dead ends: 37 [2020-08-18 22:45:01,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:45:01,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-08-18 22:45:01,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-08-18 22:45:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-18 22:45:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-08-18 22:45:01,958 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 16 [2020-08-18 22:45:01,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:45:01,958 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-08-18 22:45:01,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 22:45:01,959 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-08-18 22:45:01,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-18 22:45:01,959 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:45:01,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:45:01,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 22:45:01,960 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:45:01,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:45:01,961 INFO L82 PathProgramCache]: Analyzing trace with hash -409960037, now seen corresponding path program 1 times [2020-08-18 22:45:01,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:45:01,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344457104] [2020-08-18 22:45:01,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:45:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:45:02,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:45:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:45:02,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:45:02,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344457104] [2020-08-18 22:45:02,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:45:02,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 22:45:02,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786371199] [2020-08-18 22:45:02,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 22:45:02,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:45:02,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 22:45:02,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:45:02,106 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 6 states. [2020-08-18 22:45:02,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:45:02,324 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2020-08-18 22:45:02,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 22:45:02,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-18 22:45:02,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:45:02,326 INFO L225 Difference]: With dead ends: 72 [2020-08-18 22:45:02,326 INFO L226 Difference]: Without dead ends: 48 [2020-08-18 22:45:02,327 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 [2020-08-18 22:45:02,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-18 22:45:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-08-18 22:45:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-18 22:45:02,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-08-18 22:45:02,336 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 16 [2020-08-18 22:45:02,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:45:02,336 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-08-18 22:45:02,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 22:45:02,337 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-08-18 22:45:02,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-18 22:45:02,337 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:45:02,338 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] [2020-08-18 22:45:02,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 22:45:02,338 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:45:02,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:45:02,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1407314597, now seen corresponding path program 1 times [2020-08-18 22:45:02,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:45:02,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696661560] [2020-08-18 22:45:02,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:45:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 22:45:02,370 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 22:45:02,370 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 22:45:02,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 22:45:02,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 10:45:02 BoogieIcfgContainer [2020-08-18 22:45:02,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 22:45:02,400 INFO L168 Benchmark]: Toolchain (without parser) took 3364.02 ms. Allocated memory was 139.5 MB in the beginning and 234.9 MB in the end (delta: 95.4 MB). Free memory was 101.4 MB in the beginning and 90.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 106.1 MB. Max. memory is 7.1 GB. [2020-08-18 22:45:02,401 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 22:45:02,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.06 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.2 MB in the beginning and 168.2 MB in the end (delta: -66.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-08-18 22:45:02,403 INFO L168 Benchmark]: Boogie Preprocessor took 69.02 ms. Allocated memory is still 201.9 MB. Free memory was 168.2 MB in the beginning and 165.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-18 22:45:02,404 INFO L168 Benchmark]: RCFGBuilder took 721.71 ms. Allocated memory is still 201.9 MB. Free memory was 165.5 MB in the beginning and 117.9 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2020-08-18 22:45:02,405 INFO L168 Benchmark]: TraceAbstraction took 1920.51 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 117.3 MB in the beginning and 90.8 MB in the end (delta: 26.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2020-08-18 22:45:02,409 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.06 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.2 MB in the beginning and 168.2 MB in the end (delta: -66.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.02 ms. Allocated memory is still 201.9 MB. Free memory was 168.2 MB in the beginning and 165.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 721.71 ms. Allocated memory is still 201.9 MB. Free memory was 165.5 MB in the beginning and 117.9 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1920.51 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 117.3 MB in the beginning and 90.8 MB in the end (delta: 26.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1026]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L993] SLL* head = malloc(sizeof(SLL)); [L994] head->next = ((void*)0) [L995] head->prev = ((void*)0) [L996] head->data = 0 [L998] SLL* x = head; [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1010] x->data = 1 [L1011] x->next = malloc(sizeof(SLL)) [L1012] EXPR x->next [L1012] x->next->prev = x [L1013] EXPR x->next [L1013] x->next->data = 2 [L1015] x = head [L1017] COND FALSE !(!(((void*)0) != x)) [L1019] EXPR x->data [L1019] COND FALSE !(1 != x->data) [L1024] EXPR x->data [L1024] COND FALSE !(!(1 == x->data)) [L1025] EXPR x->next [L1025] x = x->next [L1026] EXPR x->data [L1026] COND TRUE !(2 != x->data) [L1026] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 175 SDtfs, 91 SDslu, 234 SDs, 0 SdLazy, 350 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2923 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...