/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-properties/list_search-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 06:00:46,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 06:00:46,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 06:00:46,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 06:00:46,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 06:00:46,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 06:00:46,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 06:00:46,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 06:00:46,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 06:00:46,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 06:00:46,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 06:00:46,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 06:00:46,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 06:00:46,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 06:00:46,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 06:00:46,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 06:00:46,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 06:00:46,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 06:00:46,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 06:00:46,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 06:00:46,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 06:00:46,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 06:00:46,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 06:00:46,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 06:00:46,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 06:00:46,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 06:00:46,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 06:00:46,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 06:00:46,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 06:00:46,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 06:00:46,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 06:00:46,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 06:00:46,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 06:00:46,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 06:00:46,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 06:00:46,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 06:00:46,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 06:00:46,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 06:00:46,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 06:00:46,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 06:00:46,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 06:00:46,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 06:00:47,008 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 06:00:47,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 06:00:47,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 06:00:47,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 06:00:47,012 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 06:00:47,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 06:00:47,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 06:00:47,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 06:00:47,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 06:00:47,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 06:00:47,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 06:00:47,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 06:00:47,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 06:00:47,014 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 06:00:47,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 06:00:47,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 06:00:47,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 06:00:47,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 06:00:47,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 06:00:47,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 06:00:47,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 06:00:47,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:00:47,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 06:00:47,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 06:00:47,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 06:00:47,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 06:00:47,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 06:00:47,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 06:00:47,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 06:00:47,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; [2020-08-19 06:00:47,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 06:00:47,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 06:00:47,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 06:00:47,355 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 06:00:47,355 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 06:00:47,356 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-1.i [2020-08-19 06:00:47,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc5573dd0/f9e74c213f944df6a9b7ade5663dc877/FLAGdae13283d [2020-08-19 06:00:47,908 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 06:00:47,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-properties/list_search-1.i [2020-08-19 06:00:47,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc5573dd0/f9e74c213f944df6a9b7ade5663dc877/FLAGdae13283d [2020-08-19 06:00:48,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc5573dd0/f9e74c213f944df6a9b7ade5663dc877 [2020-08-19 06:00:48,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 06:00:48,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 06:00:48,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 06:00:48,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 06:00:48,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 06:00:48,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:00:48" (1/1) ... [2020-08-19 06:00:48,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a898676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48, skipping insertion in model container [2020-08-19 06:00:48,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:00:48" (1/1) ... [2020-08-19 06:00:48,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 06:00:48,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 06:00:48,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:00:48,842 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 06:00:48,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:00:48,985 INFO L208 MainTranslator]: Completed translation [2020-08-19 06:00:48,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48 WrapperNode [2020-08-19 06:00:48,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 06:00:48,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 06:00:48,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 06:00:48,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 06:00:48,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48" (1/1) ... [2020-08-19 06:00:48,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48" (1/1) ... [2020-08-19 06:00:49,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48" (1/1) ... [2020-08-19 06:00:49,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48" (1/1) ... [2020-08-19 06:00:49,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48" (1/1) ... [2020-08-19 06:00:49,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48" (1/1) ... [2020-08-19 06:00:49,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48" (1/1) ... [2020-08-19 06:00:49,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 06:00:49,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 06:00:49,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 06:00:49,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 06:00:49,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:00:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 06:00:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 06:00:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 06:00:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-19 06:00:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-19 06:00:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-08-19 06:00:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-08-19 06:00:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-08-19 06:00:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2020-08-19 06:00:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2020-08-19 06:00:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 06:00:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 06:00:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 06:00:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-19 06:00:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-19 06:00:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-19 06:00:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-19 06:00:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-19 06:00:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-19 06:00:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-19 06:00:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-19 06:00:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-19 06:00:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-19 06:00:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-19 06:00:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-19 06:00:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-19 06:00:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-19 06:00:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-19 06:00:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-19 06:00:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-19 06:00:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-19 06:00:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-08-19 06:00:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-08-19 06:00:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-08-19 06:00:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-19 06:00:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-19 06:00:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-19 06:00:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-19 06:00:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-19 06:00:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-19 06:00:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-19 06:00:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-19 06:00:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-19 06:00:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-19 06:00:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-19 06:00:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-19 06:00:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-19 06:00:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-19 06:00:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-19 06:00:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-19 06:00:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-19 06:00:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-19 06:00:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-19 06:00:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-19 06:00:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-19 06:00:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-19 06:00:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-19 06:00:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-19 06:00:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-19 06:00:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-19 06:00:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-19 06:00:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-19 06:00:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-19 06:00:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-19 06:00:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-19 06:00:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-19 06:00:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-19 06:00:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-19 06:00:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 06:00:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 06:00:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-19 06:00:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 06:00:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-19 06:00:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-19 06:00:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-19 06:00:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-19 06:00:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 06:00:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-19 06:00:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-19 06:00:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-19 06:00:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-19 06:00:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-19 06:00:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-19 06:00:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-19 06:00:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-19 06:00:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-19 06:00:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-19 06:00:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-19 06:00:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-19 06:00:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-19 06:00:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-19 06:00:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-19 06:00:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-19 06:00:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-19 06:00:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-19 06:00:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-19 06:00:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-19 06:00:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-19 06:00:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-19 06:00:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-19 06:00:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-19 06:00:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-19 06:00:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-19 06:00:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-19 06:00:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-19 06:00:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-19 06:00:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-19 06:00:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-19 06:00:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-19 06:00:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-19 06:00:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-19 06:00:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-19 06:00:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-19 06:00:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-19 06:00:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-19 06:00:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-19 06:00:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-19 06:00:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-19 06:00:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-19 06:00:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-19 06:00:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2020-08-19 06:00:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 06:00:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 06:00:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2020-08-19 06:00:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 06:00:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 06:00:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 06:00:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 06:00:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 06:00:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 06:00:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 06:00:49,677 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 06:00:49,678 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-19 06:00:49,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:00:49 BoogieIcfgContainer [2020-08-19 06:00:49,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 06:00:49,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 06:00:49,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 06:00:49,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 06:00:49,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 06:00:48" (1/3) ... [2020-08-19 06:00:49,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef70958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:00:49, skipping insertion in model container [2020-08-19 06:00:49,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:48" (2/3) ... [2020-08-19 06:00:49,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef70958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:00:49, skipping insertion in model container [2020-08-19 06:00:49,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:00:49" (3/3) ... [2020-08-19 06:00:49,690 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2020-08-19 06:00:49,701 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 06:00:49,709 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 06:00:49,721 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 06:00:49,744 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 06:00:49,744 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 06:00:49,744 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 06:00:49,744 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 06:00:49,745 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 06:00:49,745 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 06:00:49,745 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 06:00:49,745 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 06:00:49,763 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-08-19 06:00:49,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-08-19 06:00:49,771 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:00:49,772 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2020-08-19 06:00:49,772 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:00:49,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:00:49,779 INFO L82 PathProgramCache]: Analyzing trace with hash -125905961, now seen corresponding path program 1 times [2020-08-19 06:00:49,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:00:49,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615441568] [2020-08-19 06:00:49,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:00:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:00:50,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:00:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:00:50,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:00:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:00:50,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 06:00:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:00:50,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-19 06:00:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:00:50,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-19 06:00:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:00:50,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 06:00:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:00:50,335 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-19 06:00:50,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615441568] [2020-08-19 06:00:50,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:00:50,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-19 06:00:50,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332370939] [2020-08-19 06:00:50,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 06:00:50,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:00:50,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 06:00:50,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-08-19 06:00:50,363 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 8 states. [2020-08-19 06:00:50,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:00:50,829 INFO L93 Difference]: Finished difference Result 95 states and 133 transitions. [2020-08-19 06:00:50,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 06:00:50,831 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-08-19 06:00:50,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:00:50,845 INFO L225 Difference]: With dead ends: 95 [2020-08-19 06:00:50,846 INFO L226 Difference]: Without dead ends: 49 [2020-08-19 06:00:50,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2020-08-19 06:00:50,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-08-19 06:00:50,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2020-08-19 06:00:50,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-08-19 06:00:50,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-08-19 06:00:50,944 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 45 [2020-08-19 06:00:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:00:50,947 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-08-19 06:00:50,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 06:00:50,947 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-08-19 06:00:50,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-19 06:00:50,951 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:00:50,951 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2020-08-19 06:00:50,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 06:00:50,952 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:00:50,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:00:50,952 INFO L82 PathProgramCache]: Analyzing trace with hash 874015054, now seen corresponding path program 1 times [2020-08-19 06:00:50,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:00:50,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335925117] [2020-08-19 06:00:50,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:00:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:00:51,129 ERROR L253 erpolLogProxyWrapper]: Interpolant 12 not inductive [2020-08-19 06:00:51,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 06:00:51,131 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:849) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-19 06:00:51,142 INFO L168 Benchmark]: Toolchain (without parser) took 2923.60 ms. Allocated memory was 141.0 MB in the beginning and 233.3 MB in the end (delta: 92.3 MB). Free memory was 103.1 MB in the beginning and 125.1 MB in the end (delta: -22.0 MB). Peak memory consumption was 70.3 MB. Max. memory is 7.1 GB. [2020-08-19 06:00:51,144 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 06:00:51,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.48 ms. Allocated memory was 141.0 MB in the beginning and 209.2 MB in the end (delta: 68.2 MB). Free memory was 102.9 MB in the beginning and 175.1 MB in the end (delta: -72.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-08-19 06:00:51,146 INFO L168 Benchmark]: Boogie Preprocessor took 61.22 ms. Allocated memory is still 209.2 MB. Free memory was 175.1 MB in the beginning and 172.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-19 06:00:51,147 INFO L168 Benchmark]: RCFGBuilder took 633.94 ms. Allocated memory is still 209.2 MB. Free memory was 171.8 MB in the beginning and 126.9 MB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2020-08-19 06:00:51,149 INFO L168 Benchmark]: TraceAbstraction took 1453.48 ms. Allocated memory was 209.2 MB in the beginning and 233.3 MB in the end (delta: 24.1 MB). Free memory was 126.9 MB in the beginning and 125.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-08-19 06:00:51,159 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.48 ms. Allocated memory was 141.0 MB in the beginning and 209.2 MB in the end (delta: 68.2 MB). Free memory was 102.9 MB in the beginning and 175.1 MB in the end (delta: -72.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.22 ms. Allocated memory is still 209.2 MB. Free memory was 175.1 MB in the beginning and 172.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 633.94 ms. Allocated memory is still 209.2 MB. Free memory was 171.8 MB in the beginning and 126.9 MB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1453.48 ms. Allocated memory was 209.2 MB in the beginning and 233.3 MB in the end (delta: 24.1 MB). Free memory was 126.9 MB in the beginning and 125.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...