/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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-rb-cnstr_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:10:04,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:10:04,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:10:04,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:10:04,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:10:04,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:10:04,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:10:04,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:10:04,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:10:04,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:10:04,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:10:04,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:10:04,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:10:04,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:10:04,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:10:04,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:10:04,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:10:04,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:10:04,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:10:04,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:10:04,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:10:04,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:10:04,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:10:04,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:10:04,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:10:04,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:10:04,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:10:04,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:10:04,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:10:04,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:10:04,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:10:04,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:10:04,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:10:04,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:10:04,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:10:04,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:10:04,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:10:04,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:10:04,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:10:04,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:10:04,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:10:04,943 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 [2020-10-29 09:10:05,011 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:10:05,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:10:05,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:10:05,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:10:05,018 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:10:05,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:10:05,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:10:05,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:10:05,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:10:05,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:10:05,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:10:05,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:10:05,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:10:05,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:10:05,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:10:05,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:10:05,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:10:05,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:10:05,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:10:05,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:10:05,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:10:05,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:10:05,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:10:05,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:10:05,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:10:05,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:10:05,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:10:05,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:10:05,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:10:05,026 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:10:05,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:10:05,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:10:05,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:10:05,492 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:10:05,493 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:10:05,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-cnstr_1-2.i [2020-10-29 09:10:05,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e4d093a1/b50ce498ce794ca783ee3a9e0e291222/FLAGf45b5888a [2020-10-29 09:10:06,305 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:10:06,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-rb-cnstr_1-2.i [2020-10-29 09:10:06,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e4d093a1/b50ce498ce794ca783ee3a9e0e291222/FLAGf45b5888a [2020-10-29 09:10:06,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e4d093a1/b50ce498ce794ca783ee3a9e0e291222 [2020-10-29 09:10:06,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:10:06,528 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:10:06,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:10:06,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:10:06,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:10:06,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:10:06" (1/1) ... [2020-10-29 09:10:06,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606af1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:06, skipping insertion in model container [2020-10-29 09:10:06,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:10:06" (1/1) ... [2020-10-29 09:10:06,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:10:06,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:10:06,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:10:07,001 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:10:07,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:10:07,190 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:10:07,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:07 WrapperNode [2020-10-29 09:10:07,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:10:07,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:10:07,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:10:07,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:10:07,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:07" (1/1) ... [2020-10-29 09:10:07,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:07" (1/1) ... [2020-10-29 09:10:07,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:07" (1/1) ... [2020-10-29 09:10:07,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:07" (1/1) ... [2020-10-29 09:10:07,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:07" (1/1) ... [2020-10-29 09:10:07,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:07" (1/1) ... [2020-10-29 09:10:07,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:07" (1/1) ... [2020-10-29 09:10:07,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:10:07,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:10:07,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:10:07,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:10:07,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:07" (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 [2020-10-29 09:10:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:10:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:10:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:10:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:10:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-29 09:10:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-29 09:10:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-29 09:10:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-29 09:10:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-29 09:10:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-29 09:10:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-29 09:10:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-29 09:10:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-29 09:10:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-29 09:10:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-29 09:10:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-29 09:10:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-29 09:10:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-29 09:10:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-29 09:10:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-29 09:10:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-29 09:10:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-29 09:10:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-29 09:10:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-29 09:10:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-29 09:10:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-29 09:10:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-29 09:10:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-29 09:10:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-29 09:10:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-29 09:10:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-29 09:10:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-29 09:10:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-29 09:10:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-29 09:10:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-29 09:10:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-29 09:10:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-29 09:10:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-29 09:10:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-29 09:10:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-29 09:10:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-29 09:10:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-29 09:10:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-29 09:10:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-29 09:10:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-29 09:10:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-29 09:10:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-29 09:10:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-29 09:10:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-29 09:10:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-29 09:10:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-29 09:10:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-29 09:10:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-29 09:10:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-29 09:10:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 09:10:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 09:10:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-29 09:10:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 09:10:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-29 09:10:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-29 09:10:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-29 09:10:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-29 09:10:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-29 09:10:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:10:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-29 09:10:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-29 09:10:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-29 09:10:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 09:10:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-29 09:10:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-29 09:10:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-29 09:10:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-29 09:10:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-29 09:10:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-29 09:10:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-29 09:10:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-29 09:10:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-29 09:10:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-29 09:10:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-29 09:10:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-29 09:10:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-29 09:10:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-29 09:10:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-29 09:10:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-29 09:10:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-29 09:10:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-29 09:10:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-29 09:10:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-29 09:10:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-29 09:10:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-29 09:10:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-29 09:10:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-29 09:10:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-29 09:10:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-29 09:10:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-29 09:10:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-29 09:10:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-29 09:10:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-29 09:10:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-29 09:10:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-29 09:10:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-29 09:10:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-29 09:10:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-29 09:10:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-29 09:10:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-29 09:10:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-29 09:10:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-29 09:10:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 09:10:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:10:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 09:10:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 09:10:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:10:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:10:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:10:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 09:10:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 09:10:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:10:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 09:10:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:10:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:10:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:10:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:10:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:10:08,243 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:10:08,243 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-29 09:10:08,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:10:08 BoogieIcfgContainer [2020-10-29 09:10:08,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:10:08,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:10:08,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:10:08,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:10:08,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:10:06" (1/3) ... [2020-10-29 09:10:08,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9074df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:10:08, skipping insertion in model container [2020-10-29 09:10:08,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:10:07" (2/3) ... [2020-10-29 09:10:08,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9074df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:10:08, skipping insertion in model container [2020-10-29 09:10:08,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:10:08" (3/3) ... [2020-10-29 09:10:08,255 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-2.i [2020-10-29 09:10:08,268 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:10:08,273 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:10:08,287 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:10:08,315 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:10:08,315 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:10:08,316 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:10:08,316 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:10:08,316 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:10:08,316 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:10:08,316 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:10:08,316 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:10:08,347 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-29 09:10:08,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-29 09:10:08,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:10:08,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:10:08,354 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:10:08,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:10:08,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1919368862, now seen corresponding path program 1 times [2020-10-29 09:10:08,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:10:08,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677470018] [2020-10-29 09:10:08,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:10:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:10:08,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:10:08,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:10:08,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:10:08,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:10:08,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:10:08,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-29 09:10:08,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:10:08,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:10:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 09:10:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:10:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 09:10:08,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:10:08,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:10:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:10:08,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:10:08,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:10:08,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:10:08,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:10:08,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 09:10:08,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:10:08,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:10:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:10:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:10:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:10:08,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:10:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:10:08,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677470018] [2020-10-29 09:10:08,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:10:08,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 09:10:08,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756445693] [2020-10-29 09:10:08,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 09:10:08,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:10:08,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 09:10:08,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:10:08,989 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 5 states. [2020-10-29 09:10:09,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:10:09,276 INFO L93 Difference]: Finished difference Result 72 states and 119 transitions. [2020-10-29 09:10:09,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 09:10:09,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-29 09:10:09,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:10:09,287 INFO L225 Difference]: With dead ends: 72 [2020-10-29 09:10:09,288 INFO L226 Difference]: Without dead ends: 33 [2020-10-29 09:10:09,292 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 [2020-10-29 09:10:09,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-29 09:10:09,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2020-10-29 09:10:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-29 09:10:09,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-10-29 09:10:09,336 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 12 [2020-10-29 09:10:09,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:10:09,337 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-10-29 09:10:09,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 09:10:09,337 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-10-29 09:10:09,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-29 09:10:09,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:10:09,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:10:09,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:10:09,338 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:10:09,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:10:09,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1800112252, now seen corresponding path program 1 times [2020-10-29 09:10:09,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:10:09,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036363485] [2020-10-29 09:10:09,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:10:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:10:09,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:10:09,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:10:09,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-29 09:10:09,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:10:09,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-29 09:10:09,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:10:09,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:10:09,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:10:09,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:10:09,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 09:10:09,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:10:09,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:10:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:10:09,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:10:09,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:10:09,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:10:09,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:10:09,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 09:10:09,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:10:09,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:10:09,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:10:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:10:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:10:09,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:10:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:10:09,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036363485] [2020-10-29 09:10:09,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:10:09,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 09:10:09,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041805881] [2020-10-29 09:10:09,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 09:10:09,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:10:09,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 09:10:09,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 09:10:09,716 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 6 states. [2020-10-29 09:10:10,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:10:10,042 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2020-10-29 09:10:10,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 09:10:10,043 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-29 09:10:10,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:10:10,045 INFO L225 Difference]: With dead ends: 52 [2020-10-29 09:10:10,045 INFO L226 Difference]: Without dead ends: 48 [2020-10-29 09:10:10,046 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 [2020-10-29 09:10:10,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-29 09:10:10,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 33. [2020-10-29 09:10:10,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-29 09:10:10,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2020-10-29 09:10:10,056 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 16 [2020-10-29 09:10:10,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:10:10,057 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2020-10-29 09:10:10,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 09:10:10,057 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2020-10-29 09:10:10,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-29 09:10:10,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:10:10,058 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:10:10,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:10:10,059 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:10:10,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:10:10,060 INFO L82 PathProgramCache]: Analyzing trace with hash 321788843, now seen corresponding path program 1 times [2020-10-29 09:10:10,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:10:10,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077665467] [2020-10-29 09:10:10,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:10:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:10:10,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:10:10,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:10:10,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 09:10:10,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:10:10,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-29 09:10:10,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:10:10,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:10:10,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:10:10,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:10:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 09:10:10,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:10:10,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:10:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:10:10,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:10:10,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:10:10,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:10:10,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:10:10,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:10:10,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:10:10,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:10:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:10:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:10:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:10:10,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:10:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:10:10,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077665467] [2020-10-29 09:10:10,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:10:10,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 09:10:10,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121932087] [2020-10-29 09:10:10,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 09:10:10,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:10:10,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 09:10:10,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-29 09:10:10,711 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 8 states. [2020-10-29 09:10:11,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:10:11,225 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2020-10-29 09:10:11,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:10:11,226 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-29 09:10:11,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:10:11,228 INFO L225 Difference]: With dead ends: 68 [2020-10-29 09:10:11,228 INFO L226 Difference]: Without dead ends: 64 [2020-10-29 09:10:11,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:10:11,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-29 09:10:11,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 36. [2020-10-29 09:10:11,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-29 09:10:11,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-10-29 09:10:11,239 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 19 [2020-10-29 09:10:11,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:10:11,239 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-10-29 09:10:11,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 09:10:11,239 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-10-29 09:10:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-29 09:10:11,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:10:11,240 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:10:11,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 09:10:11,241 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:10:11,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:10:11,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1022853421, now seen corresponding path program 1 times [2020-10-29 09:10:11,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:10:11,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219974415] [2020-10-29 09:10:11,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:10:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:10:11,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:10:11,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:10:11,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 09:10:11,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:10:11,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-29 09:10:11,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:10:11,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:10:11,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:10:11,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:10:11,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 09:10:11,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:10:11,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:10:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:10:11,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:10:11,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:10:11,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:10:11,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:10:11,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 09:10:11,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:10:11,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:10:11,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:10:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:10:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:10:11,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:10:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:10:11,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219974415] [2020-10-29 09:10:11,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:10:11,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 09:10:11,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182514639] [2020-10-29 09:10:11,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 09:10:11,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:10:11,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 09:10:11,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-29 09:10:11,855 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 8 states. [2020-10-29 09:10:12,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:10:12,363 INFO L93 Difference]: Finished difference Result 76 states and 91 transitions. [2020-10-29 09:10:12,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 09:10:12,363 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-29 09:10:12,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:10:12,364 INFO L225 Difference]: With dead ends: 76 [2020-10-29 09:10:12,365 INFO L226 Difference]: Without dead ends: 72 [2020-10-29 09:10:12,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 09:10:12,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-29 09:10:12,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 39. [2020-10-29 09:10:12,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-29 09:10:12,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2020-10-29 09:10:12,382 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 19 [2020-10-29 09:10:12,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:10:12,383 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2020-10-29 09:10:12,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 09:10:12,383 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2020-10-29 09:10:12,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 09:10:12,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:10:12,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:10:12,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 09:10:12,389 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:10:12,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:10:12,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1329726237, now seen corresponding path program 1 times [2020-10-29 09:10:12,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:10:12,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798780612] [2020-10-29 09:10:12,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:10:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:10:12,411 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:10:12,411 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:10:12,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 09:10:12,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:10:12 BoogieIcfgContainer [2020-10-29 09:10:12,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:10:12,443 INFO L168 Benchmark]: Toolchain (without parser) took 5920.02 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 131.4 MB in the beginning and 114.2 MB in the end (delta: 17.2 MB). Peak memory consumption was 48.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:10:12,444 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:10:12,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.62 ms. Allocated memory is still 151.0 MB. Free memory was 130.6 MB in the beginning and 123.5 MB in the end (delta: 7.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:10:12,449 INFO L168 Benchmark]: Boogie Preprocessor took 142.50 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 120.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:10:12,451 INFO L168 Benchmark]: RCFGBuilder took 909.91 ms. Allocated memory is still 151.0 MB. Free memory was 120.7 MB in the beginning and 76.7 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:10:12,458 INFO L168 Benchmark]: TraceAbstraction took 4192.08 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 76.1 MB in the beginning and 114.2 MB in the end (delta: -38.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:10:12,461 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 659.62 ms. Allocated memory is still 151.0 MB. Free memory was 130.6 MB in the beginning and 123.5 MB in the end (delta: 7.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 142.50 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 120.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 909.91 ms. Allocated memory is still 151.0 MB. Free memory was 120.7 MB in the beginning and 76.7 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4192.08 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 76.1 MB in the beginning and 114.2 MB in the end (delta: -38.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 991]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1005] SLL* list = malloc(sizeof(SLL)); [L1006] list->next = ((void*)0) [L1007] list->prev = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1036] end = ((void*)0) [L1037] end = list [L1040] COND FALSE !(!(((void*)0) != end)) [L1041] EXPR end->colour [L1041] COND FALSE !(!(BLACK == end->colour)) [L1043] COND TRUE ((void*)0) != end [L1045] EXPR end->colour [L1045] COND FALSE !(RED == end->colour) [L1051] EXPR end->next [L1051] COND TRUE !(end->next) [L1051] CALL reach_error() [L991] COND FALSE !(0) [L991] __assert_fail ("0", "dll-rb-cnstr_1-2.c", 11, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 212 SDslu, 219 SDs, 0 SdLazy, 339 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 4 MinimizatonAttempts, 83 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 8374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 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...