/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:29:44,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:29:44,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:29:44,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:29:44,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:29:44,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:29:44,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:29:44,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:29:44,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:29:44,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:29:44,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:29:44,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:29:44,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:29:44,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:29:44,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:29:44,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:29:44,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:29:44,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:29:44,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:29:44,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:29:44,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:29:44,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:29:44,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:29:44,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:29:44,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:29:44,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:29:44,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:29:44,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:29:44,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:29:44,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:29:44,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:29:44,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:29:44,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:29:44,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:29:44,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:29:44,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:29:44,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:29:44,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:29:44,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:29:44,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:29:44,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:29:44,911 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:29:44,938 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:29:44,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:29:44,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:29:44,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:29:44,943 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:29:44,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:29:44,943 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:29:44,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:29:44,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:29:44,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:29:44,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:29:44,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:29:44,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:29:44,944 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:29:44,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:29:44,945 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:29:44,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:29:44,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:29:44,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:29:44,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:29:44,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:29:44,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:29:44,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:29:44,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:29:44,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:29:44,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:29:44,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:29:44,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:29:44,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:29:44,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:29:45,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:29:45,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:29:45,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:29:45,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:29:45,416 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:29:45,417 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-24 20:29:45,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/059f4e04c/678851a236094af3aa3c5a1cfed7eb75/FLAG28f63dcce [2020-09-24 20:29:46,143 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:29:46,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-24 20:29:46,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/059f4e04c/678851a236094af3aa3c5a1cfed7eb75/FLAG28f63dcce [2020-09-24 20:29:46,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/059f4e04c/678851a236094af3aa3c5a1cfed7eb75 [2020-09-24 20:29:46,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:29:46,422 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:29:46,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:29:46,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:29:46,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:29:46,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:29:46" (1/1) ... [2020-09-24 20:29:46,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df4749d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:46, skipping insertion in model container [2020-09-24 20:29:46,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:29:46" (1/1) ... [2020-09-24 20:29:46,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:29:46,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:29:46,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:29:47,002 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:29:47,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:29:47,109 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:29:47,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:47 WrapperNode [2020-09-24 20:29:47,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:29:47,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:29:47,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:29:47,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:29:47,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:47" (1/1) ... [2020-09-24 20:29:47,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:47" (1/1) ... [2020-09-24 20:29:47,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:47" (1/1) ... [2020-09-24 20:29:47,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:47" (1/1) ... [2020-09-24 20:29:47,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:47" (1/1) ... [2020-09-24 20:29:47,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:47" (1/1) ... [2020-09-24 20:29:47,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:47" (1/1) ... [2020-09-24 20:29:47,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:29:47,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:29:47,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:29:47,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:29:47,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:29:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:29:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:29:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:29:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 20:29:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 20:29:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 20:29:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 20:29:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 20:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 20:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 20:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 20:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 20:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 20:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 20:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 20:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 20:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 20:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 20:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 20:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 20:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 20:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 20:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 20:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 20:29:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 20:29:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 20:29:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 20:29:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 20:29:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 20:29:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 20:29:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 20:29:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 20:29:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 20:29:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 20:29:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 20:29:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 20:29:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 20:29:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 20:29:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 20:29:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 20:29:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 20:29:47,273 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 20:29:47,273 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 20:29:47,273 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 20:29:47,273 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 20:29:47,273 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 20:29:47,274 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 20:29:47,274 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 20:29:47,274 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 20:29:47,274 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 20:29:47,274 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 20:29:47,274 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 20:29:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 20:29:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:29:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 20:29:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 20:29:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:29:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 20:29:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 20:29:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 20:29:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 20:29:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-24 20:29:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:29:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 20:29:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-24 20:29:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 20:29:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 20:29:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-24 20:29:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 20:29:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 20:29:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 20:29:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 20:29:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 20:29:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 20:29:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 20:29:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 20:29:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 20:29:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 20:29:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 20:29:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 20:29:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 20:29:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 20:29:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 20:29:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 20:29:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 20:29:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 20:29:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 20:29:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 20:29:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 20:29:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 20:29:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 20:29:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 20:29:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 20:29:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 20:29:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 20:29:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 20:29:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 20:29:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 20:29:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 20:29:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 20:29:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 20:29:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 20:29:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 20:29:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 20:29:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 20:29:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 20:29:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:29:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:29:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:29:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:29:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:29:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:29:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:29:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:29:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:29:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:29:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:29:47,911 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:29:47,911 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-24 20:29:47,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:29:47 BoogieIcfgContainer [2020-09-24 20:29:47,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:29:47,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:29:47,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:29:47,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:29:47,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:29:46" (1/3) ... [2020-09-24 20:29:47,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a27fb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:29:47, skipping insertion in model container [2020-09-24 20:29:47,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:47" (2/3) ... [2020-09-24 20:29:47,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a27fb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:29:47, skipping insertion in model container [2020-09-24 20:29:47,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:29:47" (3/3) ... [2020-09-24 20:29:47,928 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-09-24 20:29:47,943 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:29:47,955 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-24 20:29:47,979 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-24 20:29:48,014 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:29:48,015 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:29:48,015 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:29:48,015 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:29:48,015 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:29:48,015 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:29:48,015 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:29:48,016 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:29:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-09-24 20:29:48,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-24 20:29:48,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:48,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:29:48,054 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:48,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:48,062 INFO L82 PathProgramCache]: Analyzing trace with hash -740897811, now seen corresponding path program 1 times [2020-09-24 20:29:48,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:48,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689817787] [2020-09-24 20:29:48,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:48,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:48,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:48,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:48,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:29:48,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:29:48,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-09-24 20:29:48,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:48,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:29:48,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:29:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:29:48,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:29:49,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:49,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:49,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:49,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:29:49,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:49,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:29:49,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:49,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:29:49,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689817787] [2020-09-24 20:29:49,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:29:49,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:29:49,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862094514] [2020-09-24 20:29:49,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:29:49,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:49,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:29:49,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:29:49,191 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 9 states. [2020-09-24 20:29:49,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:49,762 INFO L93 Difference]: Finished difference Result 280 states and 337 transitions. [2020-09-24 20:29:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:29:49,765 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-09-24 20:29:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:49,781 INFO L225 Difference]: With dead ends: 280 [2020-09-24 20:29:49,781 INFO L226 Difference]: Without dead ends: 153 [2020-09-24 20:29:49,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:29:49,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-24 20:29:49,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 85. [2020-09-24 20:29:49,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-24 20:29:49,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2020-09-24 20:29:49,851 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 20 [2020-09-24 20:29:49,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:49,852 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2020-09-24 20:29:49,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:29:49,852 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-09-24 20:29:49,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 20:29:49,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:49,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:29:49,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:29:49,855 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:49,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:49,856 INFO L82 PathProgramCache]: Analyzing trace with hash 807179936, now seen corresponding path program 1 times [2020-09-24 20:29:49,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:49,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137547104] [2020-09-24 20:29:49,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:49,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:50,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:50,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:50,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:29:50,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:29:50,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-09-24 20:29:50,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:50,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:29:50,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:29:50,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 20:29:50,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:50,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:50,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:50,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:50,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:29:50,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:50,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:29:50,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:50,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:50,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:50,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:29:50,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137547104] [2020-09-24 20:29:50,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:29:50,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:29:50,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539938794] [2020-09-24 20:29:50,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:29:50,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:50,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:29:50,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:29:50,736 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 10 states. [2020-09-24 20:29:51,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:51,111 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2020-09-24 20:29:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:29:51,112 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-09-24 20:29:51,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:51,114 INFO L225 Difference]: With dead ends: 88 [2020-09-24 20:29:51,115 INFO L226 Difference]: Without dead ends: 86 [2020-09-24 20:29:51,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:29:51,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-24 20:29:51,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2020-09-24 20:29:51,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-24 20:29:51,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2020-09-24 20:29:51,127 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 31 [2020-09-24 20:29:51,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:51,127 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2020-09-24 20:29:51,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:29:51,128 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2020-09-24 20:29:51,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-24 20:29:51,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:51,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:29:51,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:29:51,131 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:51,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:51,131 INFO L82 PathProgramCache]: Analyzing trace with hash -988969633, now seen corresponding path program 1 times [2020-09-24 20:29:51,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:51,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127008623] [2020-09-24 20:29:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:51,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:51,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:52,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:53,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:53,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 20:29:53,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:29:53,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2184 [2020-09-24 20:29:53,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:29:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:29:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:29:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:53,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:53,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:53,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:53,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:29:53,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:53,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:29:53,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:53,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:53,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:53,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:53,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:29:53,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127008623] [2020-09-24 20:29:53,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:29:53,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 20:29:53,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436625178] [2020-09-24 20:29:53,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 20:29:53,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:53,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 20:29:53,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:29:53,823 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 14 states. [2020-09-24 20:29:54,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:54,680 INFO L93 Difference]: Finished difference Result 151 states and 159 transitions. [2020-09-24 20:29:54,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 20:29:54,680 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 36 [2020-09-24 20:29:54,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:54,682 INFO L225 Difference]: With dead ends: 151 [2020-09-24 20:29:54,682 INFO L226 Difference]: Without dead ends: 149 [2020-09-24 20:29:54,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2020-09-24 20:29:54,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-09-24 20:29:54,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 73. [2020-09-24 20:29:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 20:29:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2020-09-24 20:29:54,692 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 36 [2020-09-24 20:29:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:54,693 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2020-09-24 20:29:54,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 20:29:54,693 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2020-09-24 20:29:54,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 20:29:54,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:54,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:29:54,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:29:54,695 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:54,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:54,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1230029085, now seen corresponding path program 1 times [2020-09-24 20:29:54,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:54,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417537352] [2020-09-24 20:29:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:54,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:54,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:55,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:55,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:57,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:57,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:29:57,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:29:57,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2348 [2020-09-24 20:29:57,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:57,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:29:57,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:29:57,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:29:57,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:57,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:57,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:57,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:57,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:29:57,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:57,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:29:57,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:57,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:57,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:57,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:29:57,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417537352] [2020-09-24 20:29:57,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:29:57,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 20:29:57,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002002768] [2020-09-24 20:29:57,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:29:57,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:57,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:29:57,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:29:57,362 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 12 states. [2020-09-24 20:29:58,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:58,085 INFO L93 Difference]: Finished difference Result 174 states and 183 transitions. [2020-09-24 20:29:58,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:29:58,086 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-09-24 20:29:58,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:58,088 INFO L225 Difference]: With dead ends: 174 [2020-09-24 20:29:58,088 INFO L226 Difference]: Without dead ends: 144 [2020-09-24 20:29:58,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2020-09-24 20:29:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-24 20:29:58,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 89. [2020-09-24 20:29:58,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-24 20:29:58,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 95 transitions. [2020-09-24 20:29:58,099 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 95 transitions. Word has length 37 [2020-09-24 20:29:58,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:58,100 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 95 transitions. [2020-09-24 20:29:58,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:29:58,100 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions. [2020-09-24 20:29:58,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-24 20:29:58,102 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:58,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:29:58,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:29:58,102 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:58,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:58,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1667005657, now seen corresponding path program 1 times [2020-09-24 20:29:58,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:58,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75130033] [2020-09-24 20:29:58,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:29:58,128 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:29:58,128 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:29:58,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:29:58,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:29:58 BoogieIcfgContainer [2020-09-24 20:29:58,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:29:58,169 INFO L168 Benchmark]: Toolchain (without parser) took 11749.04 ms. Allocated memory was 146.3 MB in the beginning and 323.0 MB in the end (delta: 176.7 MB). Free memory was 100.9 MB in the beginning and 277.2 MB in the end (delta: -176.2 MB). Peak memory consumption was 458.7 kB. Max. memory is 7.1 GB. [2020-09-24 20:29:58,171 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 20:29:58,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.31 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 170.6 MB in the end (delta: -70.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-24 20:29:58,174 INFO L168 Benchmark]: Boogie Preprocessor took 72.10 ms. Allocated memory is still 203.4 MB. Free memory was 170.6 MB in the beginning and 167.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-24 20:29:58,180 INFO L168 Benchmark]: RCFGBuilder took 733.97 ms. Allocated memory is still 203.4 MB. Free memory was 167.6 MB in the beginning and 118.2 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2020-09-24 20:29:58,181 INFO L168 Benchmark]: TraceAbstraction took 10246.79 ms. Allocated memory was 203.4 MB in the beginning and 323.0 MB in the end (delta: 119.5 MB). Free memory was 117.5 MB in the beginning and 277.2 MB in the end (delta: -159.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 20:29:58,193 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.31 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 170.6 MB in the end (delta: -70.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.10 ms. Allocated memory is still 203.4 MB. Free memory was 170.6 MB in the beginning and 167.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 733.97 ms. Allocated memory is still 203.4 MB. Free memory was 167.6 MB in the beginning and 118.2 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10246.79 ms. Allocated memory was 203.4 MB in the beginning and 323.0 MB in the end (delta: 119.5 MB). Free memory was 117.5 MB in the beginning and 277.2 MB in the end (delta: -159.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1023]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = head [L988] head->data = 0 [L990] SLL* x = head; [L991] int state = 1; [L994] COND FALSE !(__VERIFIER_nondet_int()) [L1016] x->data = state [L1018] EXPR head->next [L1018] x = head->next [L1019] COND FALSE !(!(((void*)0) != x)) [L1021] EXPR x->data [L1021] COND TRUE x->data != 0 [L1023] EXPR x->next [L1023] EXPR x->next->data [L1023] EXPR x->next->data != 0 && x->data > x->next->data [L1023] EXPR x->data [L1023] EXPR x->next [L1023] EXPR x->next->data [L1023] EXPR x->next->data != 0 && x->data > x->next->data [L1023] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1023] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 311 SDtfs, 1278 SDslu, 1489 SDs, 0 SdLazy, 970 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred 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, 202 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 33832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...