/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/fo_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 18:57:43,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:57:43,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:57:43,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:57:43,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:57:43,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:57:43,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:57:43,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:57:43,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:57:43,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:57:43,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:57:43,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:57:43,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:57:43,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:57:43,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:57:43,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:57:43,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:57:43,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:57:43,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:57:43,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:57:43,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:57:43,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:57:43,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:57:43,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:57:43,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:57:43,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:57:43,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:57:43,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:57:43,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:57:43,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:57:43,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:57:43,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:57:43,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:57:43,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:57:43,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:57:43,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:57:43,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:57:43,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:57:43,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:57:43,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:57:43,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:57:43,983 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 [2020-08-21 18:57:44,011 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:57:44,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:57:44,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:57:44,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:57:44,018 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:57:44,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:57:44,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:57:44,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:57:44,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:57:44,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:57:44,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:57:44,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:57:44,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:57:44,023 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:57:44,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:57:44,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:57:44,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:57:44,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:57:44,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:57:44,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:57:44,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:57:44,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:57:44,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:57:44,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:57:44,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:57:44,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:57:44,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:57:44,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:57:44,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:57:44,028 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=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-21 18:57:44,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:57:44,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:57:44,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:57:44,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:57:44,363 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:57:44,363 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2020-08-21 18:57:44,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6671e9fe9/702cb589605042faa1ab2aceeb5772f2/FLAGb8577461c [2020-08-21 18:57:44,952 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:57:44,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/fo_test.i [2020-08-21 18:57:44,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6671e9fe9/702cb589605042faa1ab2aceeb5772f2/FLAGb8577461c [2020-08-21 18:57:45,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6671e9fe9/702cb589605042faa1ab2aceeb5772f2 [2020-08-21 18:57:45,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:57:45,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:57:45,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:57:45,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:57:45,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:57:45,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:57:45" (1/1) ... [2020-08-21 18:57:45,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385007d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45, skipping insertion in model container [2020-08-21 18:57:45,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:57:45" (1/1) ... [2020-08-21 18:57:45,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:57:45,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:57:45,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:57:45,778 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:57:45,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:57:45,876 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:57:45,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45 WrapperNode [2020-08-21 18:57:45,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:57:45,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:57:45,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:57:45,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:57:45,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45" (1/1) ... [2020-08-21 18:57:45,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45" (1/1) ... [2020-08-21 18:57:45,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45" (1/1) ... [2020-08-21 18:57:45,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45" (1/1) ... [2020-08-21 18:57:45,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45" (1/1) ... [2020-08-21 18:57:45,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45" (1/1) ... [2020-08-21 18:57:45,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45" (1/1) ... [2020-08-21 18:57:45,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:57:45,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:57:45,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:57:45,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:57:45,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45" (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 [2020-08-21 18:57:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:57:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:57:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-21 18:57:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2020-08-21 18:57:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:57:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2020-08-21 18:57:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2020-08-21 18:57:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:57:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-21 18:57:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-21 18:57:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-21 18:57:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-21 18:57:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-21 18:57:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-21 18:57:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-21 18:57:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-21 18:57:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-21 18:57:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-21 18:57:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-21 18:57:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-21 18:57:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-21 18:57:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-21 18:57:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-21 18:57:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-21 18:57:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-21 18:57:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-21 18:57:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-21 18:57:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-21 18:57:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-21 18:57:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-21 18:57:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-21 18:57:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-21 18:57:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-21 18:57:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-21 18:57:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-21 18:57:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-21 18:57:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-21 18:57:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-21 18:57:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-21 18:57:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-21 18:57:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-21 18:57:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-21 18:57:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-21 18:57:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-21 18:57:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-21 18:57:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-21 18:57:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-21 18:57:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-21 18:57:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-21 18:57:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-21 18:57:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-21 18:57:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-21 18:57:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-21 18:57:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-21 18:57:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-21 18:57:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-21 18:57:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-21 18:57:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-21 18:57:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 18:57:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 18:57:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-21 18:57:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 18:57:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-21 18:57:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-21 18:57:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-21 18:57:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-21 18:57:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 18:57:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-21 18:57:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-21 18:57:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 18:57:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-21 18:57:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-21 18:57:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-08-21 18:57:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-21 18:57:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-21 18:57:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-21 18:57:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-21 18:57:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-21 18:57:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-21 18:57:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-21 18:57:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-21 18:57:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-21 18:57:46,035 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-21 18:57:46,035 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-21 18:57:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-21 18:57:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-21 18:57:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-21 18:57:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-21 18:57:46,038 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-21 18:57:46,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-21 18:57:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-21 18:57:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-21 18:57:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-21 18:57:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-21 18:57:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-21 18:57:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-21 18:57:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-21 18:57:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-21 18:57:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-21 18:57:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-21 18:57:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-21 18:57:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-21 18:57:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-21 18:57:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-21 18:57:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-21 18:57:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-21 18:57:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-21 18:57:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-08-21 18:57:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-21 18:57:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-21 18:57:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2020-08-21 18:57:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2020-08-21 18:57:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2020-08-21 18:57:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2020-08-21 18:57:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2020-08-21 18:57:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2020-08-21 18:57:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2020-08-21 18:57:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2020-08-21 18:57:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2020-08-21 18:57:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2020-08-21 18:57:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2020-08-21 18:57:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2020-08-21 18:57:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2020-08-21 18:57:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2020-08-21 18:57:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2020-08-21 18:57:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2020-08-21 18:57:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2020-08-21 18:57:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2020-08-21 18:57:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2020-08-21 18:57:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2020-08-21 18:57:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2020-08-21 18:57:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2020-08-21 18:57:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2020-08-21 18:57:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2020-08-21 18:57:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure open [2020-08-21 18:57:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2020-08-21 18:57:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2020-08-21 18:57:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2020-08-21 18:57:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2020-08-21 18:57:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2020-08-21 18:57:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2020-08-21 18:57:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-08-21 18:57:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 18:57:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2020-08-21 18:57:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2020-08-21 18:57:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:57:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 18:57:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 18:57:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:57:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:57:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:57:46,539 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:57:46,539 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 18:57:46,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:57:46 BoogieIcfgContainer [2020-08-21 18:57:46,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:57:46,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:57:46,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:57:46,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:57:46,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:57:45" (1/3) ... [2020-08-21 18:57:46,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86d8482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:57:46, skipping insertion in model container [2020-08-21 18:57:46,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:57:45" (2/3) ... [2020-08-21 18:57:46,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86d8482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:57:46, skipping insertion in model container [2020-08-21 18:57:46,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:57:46" (3/3) ... [2020-08-21 18:57:46,550 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2020-08-21 18:57:46,560 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:57:46,567 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:57:46,580 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:57:46,603 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:57:46,603 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:57:46,603 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:57:46,603 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:57:46,604 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:57:46,604 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:57:46,604 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:57:46,604 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:57:46,618 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-08-21 18:57:46,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 18:57:46,624 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:57:46,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:57:46,626 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:57:46,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:57:46,630 INFO L82 PathProgramCache]: Analyzing trace with hash -722045737, now seen corresponding path program 1 times [2020-08-21 18:57:46,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:57:46,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205724037] [2020-08-21 18:57:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:57:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:57:46,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:57:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:57:46,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:57:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:57:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:57:46,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205724037] [2020-08-21 18:57:46,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:57:46,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 18:57:46,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42727839] [2020-08-21 18:57:46,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 18:57:46,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:57:46,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 18:57:46,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 18:57:46,912 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2020-08-21 18:57:47,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:57:47,093 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2020-08-21 18:57:47,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 18:57:47,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-08-21 18:57:47,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:57:47,104 INFO L225 Difference]: With dead ends: 50 [2020-08-21 18:57:47,105 INFO L226 Difference]: Without dead ends: 19 [2020-08-21 18:57:47,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 18:57:47,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-08-21 18:57:47,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-08-21 18:57:47,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-08-21 18:57:47,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-08-21 18:57:47,149 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 18 [2020-08-21 18:57:47,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:57:47,149 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-08-21 18:57:47,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 18:57:47,149 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-08-21 18:57:47,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 18:57:47,150 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:57:47,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:57:47,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:57:47,151 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:57:47,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:57:47,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1115072747, now seen corresponding path program 1 times [2020-08-21 18:57:47,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:57:47,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265219042] [2020-08-21 18:57:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:57:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 18:57:47,180 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 18:57:47,181 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 18:57:47,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:57:47,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 06:57:47 BoogieIcfgContainer [2020-08-21 18:57:47,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 18:57:47,204 INFO L168 Benchmark]: Toolchain (without parser) took 1924.07 ms. Allocated memory was 137.4 MB in the beginning and 229.1 MB in the end (delta: 91.8 MB). Free memory was 99.0 MB in the beginning and 182.5 MB in the end (delta: -83.4 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2020-08-21 18:57:47,205 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-21 18:57:47,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.37 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 98.6 MB in the beginning and 162.3 MB in the end (delta: -63.7 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-08-21 18:57:47,207 INFO L168 Benchmark]: Boogie Preprocessor took 63.13 ms. Allocated memory is still 199.8 MB. Free memory was 162.3 MB in the beginning and 159.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-08-21 18:57:47,208 INFO L168 Benchmark]: RCFGBuilder took 601.92 ms. Allocated memory is still 199.8 MB. Free memory was 159.3 MB in the beginning and 114.3 MB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2020-08-21 18:57:47,209 INFO L168 Benchmark]: TraceAbstraction took 657.24 ms. Allocated memory was 199.8 MB in the beginning and 229.1 MB in the end (delta: 29.4 MB). Free memory was 113.3 MB in the beginning and 182.5 MB in the end (delta: -69.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 18:57:47,217 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 597.37 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 98.6 MB in the beginning and 162.3 MB in the end (delta: -63.7 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.13 ms. Allocated memory is still 199.8 MB. Free memory was 162.3 MB in the beginning and 159.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 601.92 ms. Allocated memory is still 199.8 MB. Free memory was 159.3 MB in the beginning and 114.3 MB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 657.24 ms. Allocated memory was 199.8 MB in the beginning and 229.1 MB in the end (delta: 29.4 MB). Free memory was 113.3 MB in the beginning and 182.5 MB in the end (delta: -69.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1152] int globalState = 0; [L1158] CALL, EXPR l_open("unknown",00) [L1170] int fd = open(file,flags); [L1171] COND FALSE !(fd>0) [L1172] return fd; [L1158] RET, EXPR l_open("unknown",00) [L1158] int file = l_open("unknown",00); [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); [L1160] CALL l_read(file,cbuf,99) [L1165] (globalState == 1) ? (0) : __blast_assert () [L1165] CALL __blast_assert () [L960] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 22 SDslu, 15 SDs, 0 SdLazy, 42 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 918 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...