/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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 --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:45:56,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:45:56,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:45:57,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:45:57,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:45:57,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:45:57,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:45:57,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:45:57,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:45:57,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:45:57,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:45:57,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:45:57,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:45:57,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:45:57,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:45:57,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:45:57,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:45:57,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:45:57,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:45:57,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:45:57,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:45:57,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:45:57,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:45:57,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:45:57,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:45:57,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:45:57,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:45:57,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:45:57,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:45:57,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:45:57,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:45:57,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:45:57,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:45:57,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:45:57,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:45:57,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:45:57,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:45:57,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:45:57,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:45:57,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:45:57,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:45:57,089 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 [2020-10-27 19:45:57,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:45:57,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:45:57,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:45:57,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:45:57,121 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:45:57,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:45:57,121 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:45:57,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:45:57,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:45:57,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:45:57,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:45:57,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:45:57,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:45:57,123 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:45:57,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:45:57,123 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:45:57,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:45:57,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:45:57,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:45:57,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:45:57,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:45:57,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:45:57,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:45:57,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:45:57,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:45:57,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:45:57,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:45:57,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:45:57,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:45:57,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:45:57,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:45:57,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:45:57,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:45:57,608 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:45:57,609 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:45:57,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-10-27 19:45:57,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10f375b7a/2becdf4d798c412ca7dbfc9392475eb6/FLAG8d84c860e [2020-10-27 19:45:58,370 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:45:58,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-10-27 19:45:58,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10f375b7a/2becdf4d798c412ca7dbfc9392475eb6/FLAG8d84c860e [2020-10-27 19:45:58,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10f375b7a/2becdf4d798c412ca7dbfc9392475eb6 [2020-10-27 19:45:58,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:45:58,699 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:45:58,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:45:58,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:45:58,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:45:58,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:45:58" (1/1) ... [2020-10-27 19:45:58,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c057aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:58, skipping insertion in model container [2020-10-27 19:45:58,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:45:58" (1/1) ... [2020-10-27 19:45:58,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:45:58,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:45:59,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:45:59,233 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:45:59,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:45:59,348 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:45:59,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:59 WrapperNode [2020-10-27 19:45:59,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:45:59,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:45:59,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:45:59,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:45:59,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:59" (1/1) ... [2020-10-27 19:45:59,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:59" (1/1) ... [2020-10-27 19:45:59,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:59" (1/1) ... [2020-10-27 19:45:59,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:59" (1/1) ... [2020-10-27 19:45:59,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:59" (1/1) ... [2020-10-27 19:45:59,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:59" (1/1) ... [2020-10-27 19:45:59,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:59" (1/1) ... [2020-10-27 19:45:59,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:45:59,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:45:59,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:45:59,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:45:59,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:59" (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 [2020-10-27 19:45:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:45:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:45:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:45:59,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:45:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-27 19:45:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-27 19:45:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-27 19:45:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-27 19:45:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-27 19:45:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-27 19:45:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-27 19:45:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-27 19:45:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-27 19:45:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-27 19:45:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-27 19:45:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-27 19:45:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-27 19:45:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-27 19:45:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-27 19:45:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-27 19:45:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-27 19:45:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-27 19:45:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-27 19:45:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-27 19:45:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-27 19:45:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-27 19:45:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-27 19:45:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-27 19:45:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-27 19:45:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-27 19:45:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-27 19:45:59,601 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-27 19:45:59,601 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-27 19:45:59,601 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-27 19:45:59,601 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-27 19:45:59,601 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-27 19:45:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-27 19:45:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-27 19:45:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-27 19:45:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-27 19:45:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-27 19:45:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-27 19:45:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-27 19:45:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-27 19:45:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-27 19:45:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-27 19:45:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-27 19:45:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-27 19:45:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-27 19:45:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-27 19:45:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-27 19:45:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-27 19:45:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-27 19:45:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-27 19:45:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 19:45:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 19:45:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-27 19:45:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 19:45:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-27 19:45:59,606 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-27 19:45:59,606 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-27 19:45:59,606 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-27 19:45:59,606 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-27 19:45:59,606 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:45:59,606 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-27 19:45:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-27 19:45:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-27 19:45:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 19:45:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-27 19:45:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-27 19:45:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-27 19:45:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-27 19:45:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-27 19:45:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-27 19:45:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-27 19:45:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-27 19:45:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-27 19:45:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-27 19:45:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-27 19:45:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-27 19:45:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-27 19:45:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-27 19:45:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-27 19:45:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-27 19:45:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-27 19:45:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-27 19:45:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-27 19:45:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-27 19:45:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-27 19:45:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-27 19:45:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-27 19:45:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-27 19:45:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-27 19:45:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-27 19:45:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-27 19:45:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-27 19:45:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-27 19:45:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-27 19:45:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-27 19:45:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-27 19:45:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-27 19:45:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-27 19:45:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-27 19:45:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-27 19:45:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-27 19:45:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-27 19:45:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-27 19:45:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 19:45:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:45:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 19:45:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 19:45:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:45:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:45:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:45:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 19:45:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 19:45:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:45:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 19:45:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:45:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:45:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:45:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:45:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:46:00,427 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:46:00,428 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-27 19:46:00,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:46:00 BoogieIcfgContainer [2020-10-27 19:46:00,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:46:00,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:46:00,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:46:00,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:46:00,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:45:58" (1/3) ... [2020-10-27 19:46:00,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162bdba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:46:00, skipping insertion in model container [2020-10-27 19:46:00,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:45:59" (2/3) ... [2020-10-27 19:46:00,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162bdba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:46:00, skipping insertion in model container [2020-10-27 19:46:00,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:46:00" (3/3) ... [2020-10-27 19:46:00,439 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-10-27 19:46:00,452 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:46:00,458 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:46:00,473 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:46:00,501 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:46:00,501 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:46:00,501 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:46:00,501 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:46:00,501 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:46:00,502 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:46:00,502 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:46:00,502 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:46:00,522 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-10-27 19:46:00,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-27 19:46:00,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:46:00,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:46:00,533 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:46:00,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:46:00,542 INFO L82 PathProgramCache]: Analyzing trace with hash -323057978, now seen corresponding path program 1 times [2020-10-27 19:46:00,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:46:00,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059478477] [2020-10-27 19:46:00,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:46:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:46:00,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:00,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:01,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:46:01,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 19:46:01,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:46:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-10-27 19:46:01,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:46:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:46:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 19:46:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:46:01,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 19:46:01,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:46:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:46:01,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:01,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:46:01,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:46:01,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:46:01,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 19:46:01,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:46:01,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:46:01,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:46:01,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:46:01,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:46:01,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:46:01,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059478477] [2020-10-27 19:46:01,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:46:01,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 19:46:01,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109739205] [2020-10-27 19:46:01,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 19:46:01,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:46:01,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 19:46:01,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 19:46:01,287 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2020-10-27 19:46:01,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:46:01,541 INFO L93 Difference]: Finished difference Result 75 states and 118 transitions. [2020-10-27 19:46:01,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:46:01,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-27 19:46:01,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:46:01,553 INFO L225 Difference]: With dead ends: 75 [2020-10-27 19:46:01,553 INFO L226 Difference]: Without dead ends: 30 [2020-10-27 19:46:01,557 INFO L677 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 [2020-10-27 19:46:01,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-27 19:46:01,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-27 19:46:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-27 19:46:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-10-27 19:46:01,602 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 12 [2020-10-27 19:46:01,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:46:01,602 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-10-27 19:46:01,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 19:46:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-10-27 19:46:01,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-27 19:46:01,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:46:01,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:46:01,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:46:01,604 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:46:01,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:46:01,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2142796056, now seen corresponding path program 1 times [2020-10-27 19:46:01,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:46:01,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537966473] [2020-10-27 19:46:01,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:46:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:46:01,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:01,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:46:01,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 19:46:01,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:46:01,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-27 19:46:01,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:46:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:46:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 19:46:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:46:01,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:46:01,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:46:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:46:01,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:01,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:46:01,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:46:01,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:46:01,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 19:46:01,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:46:01,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:46:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:46:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:46:01,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:46:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:46:01,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537966473] [2020-10-27 19:46:01,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:46:01,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 19:46:01,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866545579] [2020-10-27 19:46:01,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 19:46:01,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:46:01,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 19:46:01,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:46:01,978 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-10-27 19:46:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:46:02,193 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2020-10-27 19:46:02,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 19:46:02,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-27 19:46:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:46:02,195 INFO L225 Difference]: With dead ends: 47 [2020-10-27 19:46:02,196 INFO L226 Difference]: Without dead ends: 42 [2020-10-27 19:46:02,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:46:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-27 19:46:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2020-10-27 19:46:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-27 19:46:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-10-27 19:46:02,206 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 13 [2020-10-27 19:46:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:46:02,206 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-10-27 19:46:02,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 19:46:02,207 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2020-10-27 19:46:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 19:46:02,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:46:02,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:46:02,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:46:02,208 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:46:02,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:46:02,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1634639351, now seen corresponding path program 1 times [2020-10-27 19:46:02,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:46:02,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560588611] [2020-10-27 19:46:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:46:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:46:02,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:02,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:02,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:46:02,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 19:46:02,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:46:02,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-27 19:46:02,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:46:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 19:46:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 19:46:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:46:02,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:46:02,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:46:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:46:02,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:02,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:46:02,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:46:02,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:46:02,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 19:46:02,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:46:02,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:46:02,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:46:02,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:46:02,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:46:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:46:02,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560588611] [2020-10-27 19:46:02,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:46:02,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:46:02,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230663116] [2020-10-27 19:46:02,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:46:02,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:46:02,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:46:02,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:46:02,682 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 4 states. [2020-10-27 19:46:02,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:46:02,828 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2020-10-27 19:46:02,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 19:46:02,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-27 19:46:02,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:46:02,831 INFO L225 Difference]: With dead ends: 75 [2020-10-27 19:46:02,831 INFO L226 Difference]: Without dead ends: 52 [2020-10-27 19:46:02,832 INFO L677 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 [2020-10-27 19:46:02,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-27 19:46:02,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 40. [2020-10-27 19:46:02,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-27 19:46:02,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2020-10-27 19:46:02,849 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 16 [2020-10-27 19:46:02,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:46:02,850 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2020-10-27 19:46:02,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:46:02,850 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2020-10-27 19:46:02,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 19:46:02,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:46:02,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:46:02,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 19:46:02,854 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:46:02,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:46:02,855 INFO L82 PathProgramCache]: Analyzing trace with hash -94271402, now seen corresponding path program 1 times [2020-10-27 19:46:02,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:46:02,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764264491] [2020-10-27 19:46:02,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:46:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:46:02,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:03,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:03,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:46:03,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 19:46:03,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:46:03,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-27 19:46:03,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:46:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 19:46:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 19:46:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 19:46:03,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:46:03,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:46:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:46:03,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:46:03,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:46:03,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:46:03,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:46:03,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 19:46:03,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:46:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:46:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:46:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:46:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:46:03,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:46:03,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764264491] [2020-10-27 19:46:03,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:46:03,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:46:03,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961276453] [2020-10-27 19:46:03,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:46:03,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:46:03,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:46:03,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:46:03,251 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand 6 states. [2020-10-27 19:46:03,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:46:03,590 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2020-10-27 19:46:03,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 19:46:03,591 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-27 19:46:03,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:46:03,592 INFO L225 Difference]: With dead ends: 60 [2020-10-27 19:46:03,592 INFO L226 Difference]: Without dead ends: 49 [2020-10-27 19:46:03,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-27 19:46:03,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-27 19:46:03,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2020-10-27 19:46:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-27 19:46:03,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2020-10-27 19:46:03,613 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 19 [2020-10-27 19:46:03,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:46:03,613 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2020-10-27 19:46:03,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:46:03,613 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2020-10-27 19:46:03,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 19:46:03,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:46:03,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:46:03,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 19:46:03,619 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:46:03,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:46:03,619 INFO L82 PathProgramCache]: Analyzing trace with hash -96118444, now seen corresponding path program 1 times [2020-10-27 19:46:03,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:46:03,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281995838] [2020-10-27 19:46:03,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:46:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:46:03,649 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:46:03,650 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:46:03,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 19:46:03,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:46:03 BoogieIcfgContainer [2020-10-27 19:46:03,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:46:03,679 INFO L168 Benchmark]: Toolchain (without parser) took 4983.11 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 126.3 MB in the beginning and 73.8 MB in the end (delta: 52.5 MB). Peak memory consumption was 84.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:46:03,680 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 152.0 MB. Free memory was 124.5 MB in the beginning and 124.4 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:46:03,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.46 ms. Allocated memory is still 152.0 MB. Free memory was 125.7 MB in the beginning and 103.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:46:03,685 INFO L168 Benchmark]: Boogie Preprocessor took 163.83 ms. Allocated memory is still 152.0 MB. Free memory was 103.8 MB in the beginning and 134.9 MB in the end (delta: -31.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:46:03,688 INFO L168 Benchmark]: RCFGBuilder took 914.45 ms. Allocated memory is still 152.0 MB. Free memory was 134.9 MB in the beginning and 92.7 MB in the end (delta: 42.2 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. [2020-10-27 19:46:03,694 INFO L168 Benchmark]: TraceAbstraction took 3243.42 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 92.1 MB in the beginning and 73.8 MB in the end (delta: 18.4 MB). Peak memory consumption was 49.8 MB. Max. memory is 8.0 GB. [2020-10-27 19:46:03,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 152.0 MB. Free memory was 124.5 MB in the beginning and 124.4 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 646.46 ms. Allocated memory is still 152.0 MB. Free memory was 125.7 MB in the beginning and 103.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 163.83 ms. Allocated memory is still 152.0 MB. Free memory was 103.8 MB in the beginning and 134.9 MB in the end (delta: -31.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 914.45 ms. Allocated memory is still 152.0 MB. Free memory was 134.9 MB in the beginning and 92.7 MB in the end (delta: 42.2 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3243.42 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 92.1 MB in the beginning and 73.8 MB in the end (delta: 18.4 MB). Peak memory consumption was 49.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 985]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); [L998] head->next = head [L999] head->data = 0 [L1001] SLL* x = head; [L1002] int state = 1; [L1005] COND FALSE !(__VERIFIER_nondet_int()) [L1027] x->data = state [L1029] EXPR head->next [L1029] x = head->next [L1030] COND FALSE !(!(((void*)0) != x)) [L1032] EXPR x->data [L1032] COND TRUE x->data != 0 [L1034] EXPR x->next [L1034] EXPR x->next->data [L1034] EXPR x->next->data != 0 && x->data > x->next->data [L1034] EXPR x->data [L1034] EXPR x->next [L1034] EXPR x->next->data [L1034] EXPR x->next->data != 0 && x->data > x->next->data [L1034] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1034] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "dll-circular-1.c", 14, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 124 SDtfs, 61 SDslu, 125 SDs, 0 SdLazy, 222 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=4, 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, 4 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 5824 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...