/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=SHALLOWEST --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/sll-rb-cnstr_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:06:32,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:06:32,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:06:32,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:06:32,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:06:32,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:06:32,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:06:32,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:06:32,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:06:32,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:06:32,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:06:32,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:06:32,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:06:32,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:06:32,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:06:32,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:06:32,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:06:32,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:06:32,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:06:32,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:06:32,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:06:32,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:06:32,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:06:32,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:06:32,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:06:32,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:06:32,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:06:32,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:06:32,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:06:32,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:06:32,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:06:32,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:06:32,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:06:32,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:06:32,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:06:32,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:06:32,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:06:32,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:06:32,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:06:32,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:06:32,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:06:32,331 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 01:06:32,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:06:32,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:06:32,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:06:32,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:06:32,391 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:06:32,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:06:32,393 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:06:32,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:06:32,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:06:32,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:06:32,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:06:32,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:06:32,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:06:32,396 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:06:32,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:06:32,396 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:06:32,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:06:32,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:06:32,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:06:32,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:06:32,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:06:32,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:06:32,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:06:32,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:06:32,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:06:32,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:06:32,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:06:32,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:06:32,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:06:32,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:06:32,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:06:32,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:06:32,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:06:32,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:06:32,867 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:06:32,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i [2020-10-27 01:06:32,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05082175b/4adb09dde28b4d4a98941e3261fa91b2/FLAG2f1601808 [2020-10-27 01:06:33,641 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:06:33,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i [2020-10-27 01:06:33,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05082175b/4adb09dde28b4d4a98941e3261fa91b2/FLAG2f1601808 [2020-10-27 01:06:33,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05082175b/4adb09dde28b4d4a98941e3261fa91b2 [2020-10-27 01:06:33,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:06:33,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:06:33,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:06:33,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:06:33,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:06:33,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:06:33" (1/1) ... [2020-10-27 01:06:33,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ef72c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:33, skipping insertion in model container [2020-10-27 01:06:33,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:06:33" (1/1) ... [2020-10-27 01:06:33,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:06:34,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:06:34,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:06:34,381 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:06:34,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:06:34,524 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:06:34,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:34 WrapperNode [2020-10-27 01:06:34,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:06:34,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:06:34,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:06:34,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:06:34,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:34" (1/1) ... [2020-10-27 01:06:34,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:34" (1/1) ... [2020-10-27 01:06:34,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:34" (1/1) ... [2020-10-27 01:06:34,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:34" (1/1) ... [2020-10-27 01:06:34,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:34" (1/1) ... [2020-10-27 01:06:34,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:34" (1/1) ... [2020-10-27 01:06:34,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:34" (1/1) ... [2020-10-27 01:06:34,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:06:34,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:06:34,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:06:34,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:06:34,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:34" (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 01:06:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:06:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:06:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:06:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:06:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-27 01:06:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-27 01:06:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-27 01:06:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-27 01:06:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-27 01:06:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-27 01:06:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-27 01:06:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-27 01:06:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-27 01:06:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-27 01:06:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-27 01:06:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-27 01:06:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-27 01:06:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-27 01:06:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-27 01:06:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-27 01:06:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-27 01:06:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-27 01:06:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-27 01:06:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-27 01:06:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-27 01:06:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-27 01:06:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-27 01:06:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-27 01:06:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-27 01:06:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-27 01:06:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-27 01:06:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-27 01:06:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-27 01:06:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-27 01:06:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-27 01:06:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-27 01:06:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-27 01:06:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-27 01:06:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-27 01:06:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-27 01:06:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-27 01:06:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-27 01:06:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-27 01:06:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-27 01:06:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-27 01:06:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-27 01:06:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-27 01:06:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-27 01:06:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-27 01:06:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-27 01:06:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-27 01:06:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-27 01:06:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-27 01:06:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-27 01:06:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 01:06:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 01:06:34,732 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-27 01:06:34,732 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 01:06:34,732 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-27 01:06:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-27 01:06:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-27 01:06:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-27 01:06:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-27 01:06:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:06:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-27 01:06:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-27 01:06:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-27 01:06:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 01:06:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-27 01:06:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-27 01:06:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-27 01:06:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-27 01:06:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-27 01:06:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-27 01:06:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-27 01:06:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-27 01:06:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-27 01:06:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-27 01:06:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-27 01:06:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-27 01:06:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-27 01:06:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-27 01:06:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-27 01:06:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-27 01:06:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-27 01:06:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-27 01:06:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-27 01:06:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-27 01:06:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-27 01:06:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-27 01:06:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-27 01:06:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-27 01:06:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-27 01:06:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-27 01:06:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-27 01:06:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-27 01:06:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-27 01:06:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-27 01:06:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-27 01:06:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-27 01:06:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-27 01:06:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-27 01:06:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-27 01:06:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-27 01:06:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-27 01:06:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-27 01:06:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-27 01:06:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 01:06:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:06:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 01:06:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 01:06:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:06:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:06:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:06:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 01:06:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 01:06:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:06:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 01:06:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:06:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:06:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:06:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:06:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:06:35,316 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:06:35,317 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-27 01:06:35,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:06:35 BoogieIcfgContainer [2020-10-27 01:06:35,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:06:35,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:06:35,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:06:35,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:06:35,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:06:33" (1/3) ... [2020-10-27 01:06:35,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38bc89d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:06:35, skipping insertion in model container [2020-10-27 01:06:35,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:34" (2/3) ... [2020-10-27 01:06:35,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38bc89d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:06:35, skipping insertion in model container [2020-10-27 01:06:35,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:06:35" (3/3) ... [2020-10-27 01:06:35,327 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-2.i [2020-10-27 01:06:35,338 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:06:35,344 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:06:35,357 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:06:35,384 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:06:35,384 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:06:35,384 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:06:35,384 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:06:35,385 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:06:35,385 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:06:35,385 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:06:35,385 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:06:35,402 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-27 01:06:35,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-27 01:06:35,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:06:35,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:06:35,409 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:06:35,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:06:35,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1919368862, now seen corresponding path program 1 times [2020-10-27 01:06:35,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:06:35,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457828390] [2020-10-27 01:06:35,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:06:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:06:35,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:06:35,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:06:35,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:06:35,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 01:06:35,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:06:35,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-10-27 01:06:35,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:06:35,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:06:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:06:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:06:35,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:06:36,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:06:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:06:36,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:06:36,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:06:36,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:06:36,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:06:36,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 01:06:36,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:06:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:06:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:06:36,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:06:36,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:06:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:06:36,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457828390] [2020-10-27 01:06:36,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:06:36,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:06:36,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233721298] [2020-10-27 01:06:36,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:06:36,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:06:36,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:06:36,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:06:36,139 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 5 states. [2020-10-27 01:06:36,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:06:36,373 INFO L93 Difference]: Finished difference Result 72 states and 119 transitions. [2020-10-27 01:06:36,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 01:06:36,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-27 01:06:36,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:06:36,383 INFO L225 Difference]: With dead ends: 72 [2020-10-27 01:06:36,383 INFO L226 Difference]: Without dead ends: 33 [2020-10-27 01:06:36,387 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 01:06:36,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-27 01:06:36,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2020-10-27 01:06:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-27 01:06:36,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-10-27 01:06:36,428 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 12 [2020-10-27 01:06:36,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:06:36,429 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-10-27 01:06:36,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:06:36,429 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-10-27 01:06:36,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 01:06:36,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:06:36,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:06:36,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:06:36,431 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:06:36,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:06:36,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1800112252, now seen corresponding path program 1 times [2020-10-27 01:06:36,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:06:36,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834788387] [2020-10-27 01:06:36,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:06:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:06:36,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:06:36,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:06:36,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 01:06:36,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:06:36,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-27 01:06:36,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:06:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:06:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:06:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 01:06:36,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:06:36,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:06:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:06:36,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:06:36,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:06:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:06:36,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:06:36,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:06:36,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:06:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:06:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:06:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:06:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:06:36,640 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 01:06:36,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834788387] [2020-10-27 01:06:36,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:06:36,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:06:36,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169202682] [2020-10-27 01:06:36,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:06:36,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:06:36,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:06:36,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:06:36,645 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 6 states. [2020-10-27 01:06:36,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:06:36,794 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2020-10-27 01:06:36,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:06:36,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-27 01:06:36,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:06:36,796 INFO L225 Difference]: With dead ends: 52 [2020-10-27 01:06:36,796 INFO L226 Difference]: Without dead ends: 48 [2020-10-27 01:06:36,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:06:36,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-27 01:06:36,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 33. [2020-10-27 01:06:36,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-27 01:06:36,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2020-10-27 01:06:36,808 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 16 [2020-10-27 01:06:36,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:06:36,808 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2020-10-27 01:06:36,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:06:36,808 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2020-10-27 01:06:36,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:06:36,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:06:36,809 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:06:36,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:06:36,811 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:06:36,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:06:36,812 INFO L82 PathProgramCache]: Analyzing trace with hash 321788843, now seen corresponding path program 1 times [2020-10-27 01:06:36,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:06:36,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631740520] [2020-10-27 01:06:36,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:06:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:06:36,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:06:37,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:06:37,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 01:06:37,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:06:37,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-27 01:06:37,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:06:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:06:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:06:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 01:06:37,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:06:37,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:06:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:06:37,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:06:37,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:06:37,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:06:37,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:06:37,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:06:37,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:06:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:06:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:06:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:06:37,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:06:37,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:06:37,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631740520] [2020-10-27 01:06:37,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:06:37,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 01:06:37,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413857966] [2020-10-27 01:06:37,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:06:37,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:06:37,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:06:37,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:06:37,389 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 8 states. [2020-10-27 01:06:37,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:06:37,727 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2020-10-27 01:06:37,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 01:06:37,727 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-27 01:06:37,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:06:37,729 INFO L225 Difference]: With dead ends: 68 [2020-10-27 01:06:37,729 INFO L226 Difference]: Without dead ends: 64 [2020-10-27 01:06:37,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-27 01:06:37,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-27 01:06:37,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 34. [2020-10-27 01:06:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-27 01:06:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2020-10-27 01:06:37,739 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 19 [2020-10-27 01:06:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:06:37,740 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2020-10-27 01:06:37,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:06:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2020-10-27 01:06:37,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:06:37,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:06:37,741 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:06:37,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:06:37,741 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:06:37,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:06:37,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1022853421, now seen corresponding path program 1 times [2020-10-27 01:06:37,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:06:37,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025824965] [2020-10-27 01:06:37,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:06:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:06:37,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:06:37,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:06:37,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 01:06:37,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:06:37,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-27 01:06:37,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:06:37,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:06:37,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:06:37,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 01:06:37,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:06:38,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:06:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:06:38,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:06:38,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:06:38,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:06:38,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:06:38,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:06:38,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:06:38,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:06:38,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:06:38,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:06:38,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:06:38,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:06:38,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025824965] [2020-10-27 01:06:38,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:06:38,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 01:06:38,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052324884] [2020-10-27 01:06:38,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:06:38,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:06:38,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:06:38,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:06:38,140 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 8 states. [2020-10-27 01:06:38,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:06:38,460 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2020-10-27 01:06:38,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 01:06:38,461 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-27 01:06:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:06:38,462 INFO L225 Difference]: With dead ends: 87 [2020-10-27 01:06:38,463 INFO L226 Difference]: Without dead ends: 83 [2020-10-27 01:06:38,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-27 01:06:38,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-27 01:06:38,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 39. [2020-10-27 01:06:38,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-27 01:06:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2020-10-27 01:06:38,481 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 19 [2020-10-27 01:06:38,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:06:38,481 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2020-10-27 01:06:38,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:06:38,482 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2020-10-27 01:06:38,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 01:06:38,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:06:38,484 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] [2020-10-27 01:06:38,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 01:06:38,484 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:06:38,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:06:38,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1329726237, now seen corresponding path program 1 times [2020-10-27 01:06:38,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:06:38,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650769877] [2020-10-27 01:06:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:06:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:06:38,513 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:06:38,514 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:06:38,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 01:06:38,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:06:38 BoogieIcfgContainer [2020-10-27 01:06:38,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:06:38,542 INFO L168 Benchmark]: Toolchain (without parser) took 4607.48 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 126.7 MB in the beginning and 95.8 MB in the end (delta: 30.9 MB). Peak memory consumption was 67.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:06:38,543 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory was 125.1 MB in the beginning and 125.1 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:06:38,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.77 ms. Allocated memory is still 153.1 MB. Free memory was 126.1 MB in the beginning and 104.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:06:38,547 INFO L168 Benchmark]: Boogie Preprocessor took 94.69 ms. Allocated memory is still 153.1 MB. Free memory was 104.1 MB in the beginning and 135.5 MB in the end (delta: -31.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:06:38,549 INFO L168 Benchmark]: RCFGBuilder took 696.51 ms. Allocated memory is still 153.1 MB. Free memory was 135.5 MB in the beginning and 92.9 MB in the end (delta: 42.6 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:06:38,554 INFO L168 Benchmark]: TraceAbstraction took 3218.72 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 92.4 MB in the beginning and 95.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 33.8 MB. Max. memory is 8.0 GB. [2020-10-27 01:06:38,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory was 125.1 MB in the beginning and 125.1 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 582.77 ms. Allocated memory is still 153.1 MB. Free memory was 126.1 MB in the beginning and 104.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 94.69 ms. Allocated memory is still 153.1 MB. Free memory was 104.1 MB in the beginning and 135.5 MB in the end (delta: -31.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 696.51 ms. Allocated memory is still 153.1 MB. Free memory was 135.5 MB in the beginning and 92.9 MB in the end (delta: 42.6 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3218.72 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 92.4 MB in the beginning and 95.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 33.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 993]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1006] SLL* list = malloc(sizeof(SLL)); [L1007] list->next = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1034] end = ((void*)0) [L1035] end = list [L1038] COND FALSE !(!(((void*)0) != end)) [L1039] EXPR end->colour [L1039] COND FALSE !(!(BLACK == end->colour)) [L1041] COND TRUE ((void*)0) != end [L1043] EXPR end->colour [L1043] COND FALSE !(RED == end->colour) [L1049] EXPR end->next [L1049] COND TRUE !(end->next) [L1049] CALL reach_error() [L993] COND FALSE !(0) [L993] __assert_fail ("0", "sll-rb-cnstr_1-2.c", 13, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 210 SDslu, 237 SDs, 0 SdLazy, 348 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s 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, 96 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 7960 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...