/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=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-c90d42b [2020-09-24 22:43:29,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:43:29,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:43:29,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:43:29,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:43:29,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:43:29,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:43:29,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:43:29,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:43:29,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:43:29,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:43:29,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:43:29,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:43:29,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:43:29,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:43:29,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:43:29,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:43:29,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:43:29,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:43:29,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:43:29,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:43:29,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:43:29,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:43:29,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:43:29,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:43:29,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:43:29,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:43:29,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:43:29,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:43:29,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:43:29,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:43:29,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:43:29,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:43:29,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:43:29,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:43:29,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:43:29,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:43:29,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:43:29,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:43:29,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:43:29,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:43:29,343 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:43:29,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:43:29,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:43:29,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:43:29,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:43:29,399 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:43:29,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:43:29,400 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:43:29,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:43:29,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:43:29,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:43:29,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:43:29,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:43:29,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:43:29,402 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:43:29,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:43:29,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:43:29,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:43:29,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:43:29,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:43:29,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:43:29,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:43:29,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:43:29,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:43:29,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:43:29,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:43:29,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:43:29,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:43:29,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:43:29,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:43:29,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:43:29,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:43:29,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:43:29,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:43:29,898 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:43:29,899 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:43:29,900 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2020-09-24 22:43:29,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9077d0c3/0bd0a6a30bfe4260be8c5ff50553f58d/FLAG77dbd44e4 [2020-09-24 22:43:30,579 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:43:30,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/fo_test.i [2020-09-24 22:43:30,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9077d0c3/0bd0a6a30bfe4260be8c5ff50553f58d/FLAG77dbd44e4 [2020-09-24 22:43:30,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9077d0c3/0bd0a6a30bfe4260be8c5ff50553f58d [2020-09-24 22:43:30,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:43:30,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:43:30,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:43:30,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:43:30,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:43:30,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:43:30" (1/1) ... [2020-09-24 22:43:30,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7701fc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:30, skipping insertion in model container [2020-09-24 22:43:30,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:43:30" (1/1) ... [2020-09-24 22:43:30,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:43:30,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:43:31,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:43:31,501 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:43:31,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:43:31,658 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:43:31,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:31 WrapperNode [2020-09-24 22:43:31,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:43:31,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:43:31,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:43:31,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:43:31,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:31" (1/1) ... [2020-09-24 22:43:31,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:31" (1/1) ... [2020-09-24 22:43:31,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:31" (1/1) ... [2020-09-24 22:43:31,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:31" (1/1) ... [2020-09-24 22:43:31,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:31" (1/1) ... [2020-09-24 22:43:31,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:31" (1/1) ... [2020-09-24 22:43:31,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:31" (1/1) ... [2020-09-24 22:43:31,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:43:31,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:43:31,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:43:31,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:43:31,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:43:31,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:43:31,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:43:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-24 22:43:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2020-09-24 22:43:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:43:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2020-09-24 22:43:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2020-09-24 22:43:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:43:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 22:43:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 22:43:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 22:43:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 22:43:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 22:43:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 22:43:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 22:43:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 22:43:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 22:43:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 22:43:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 22:43:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 22:43:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 22:43:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 22:43:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 22:43:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 22:43:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 22:43:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 22:43:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 22:43:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 22:43:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 22:43:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 22:43:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 22:43:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 22:43:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 22:43:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 22:43:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 22:43:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 22:43:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 22:43:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 22:43:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 22:43:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 22:43:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 22:43:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 22:43:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 22:43:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 22:43:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 22:43:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 22:43:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 22:43:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 22:43:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 22:43:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 22:43:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 22:43:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 22:43:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 22:43:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 22:43:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 22:43:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 22:43:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 22:43:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 22:43:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:43:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 22:43:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 22:43:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:43:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 22:43:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 22:43:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 22:43:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 22:43:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 22:43:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 22:43:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 22:43:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 22:43:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 22:43:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 22:43:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-09-24 22:43:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 22:43:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 22:43:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 22:43:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 22:43:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 22:43:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 22:43:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 22:43:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 22:43:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 22:43:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 22:43:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 22:43:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 22:43:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 22:43:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 22:43:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 22:43:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 22:43:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 22:43:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 22:43:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 22:43:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 22:43:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 22:43:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 22:43:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 22:43:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 22:43:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 22:43:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 22:43:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 22:43:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 22:43:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 22:43:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 22:43:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 22:43:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 22:43:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 22:43:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 22:43:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-09-24 22:43:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 22:43:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-24 22:43:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2020-09-24 22:43:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2020-09-24 22:43:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2020-09-24 22:43:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2020-09-24 22:43:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2020-09-24 22:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2020-09-24 22:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2020-09-24 22:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2020-09-24 22:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2020-09-24 22:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2020-09-24 22:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2020-09-24 22:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2020-09-24 22:43:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2020-09-24 22:43:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2020-09-24 22:43:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2020-09-24 22:43:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2020-09-24 22:43:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2020-09-24 22:43:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2020-09-24 22:43:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2020-09-24 22:43:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2020-09-24 22:43:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2020-09-24 22:43:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2020-09-24 22:43:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2020-09-24 22:43:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2020-09-24 22:43:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure open [2020-09-24 22:43:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2020-09-24 22:43:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2020-09-24 22:43:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2020-09-24 22:43:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2020-09-24 22:43:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2020-09-24 22:43:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2020-09-24 22:43:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-24 22:43:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:43:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2020-09-24 22:43:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2020-09-24 22:43:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:43:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:43:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:43:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:43:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:43:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:43:32,324 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:43:32,324 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 22:43:32,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:43:32 BoogieIcfgContainer [2020-09-24 22:43:32,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:43:32,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:43:32,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:43:32,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:43:32,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:43:30" (1/3) ... [2020-09-24 22:43:32,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2881651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:43:32, skipping insertion in model container [2020-09-24 22:43:32,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:31" (2/3) ... [2020-09-24 22:43:32,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2881651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:43:32, skipping insertion in model container [2020-09-24 22:43:32,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:43:32" (3/3) ... [2020-09-24 22:43:32,342 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2020-09-24 22:43:32,354 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:43:32,364 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:43:32,386 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:43:32,413 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:43:32,413 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:43:32,413 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:43:32,413 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:43:32,414 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:43:32,414 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:43:32,414 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:43:32,414 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:43:32,435 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-09-24 22:43:32,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-24 22:43:32,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:32,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:32,444 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:32,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:32,452 INFO L82 PathProgramCache]: Analyzing trace with hash 86369829, now seen corresponding path program 1 times [2020-09-24 22:43:32,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:32,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830203335] [2020-09-24 22:43:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 22:43:32,651 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 22:43:32,652 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 22:43:32,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:43:32,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:43:32 BoogieIcfgContainer [2020-09-24 22:43:32,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:43:32,685 INFO L168 Benchmark]: Toolchain (without parser) took 1808.55 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 100.3 MB in the beginning and 101.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. [2020-09-24 22:43:32,686 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 22:43:32,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.70 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 99.7 MB in the beginning and 166.4 MB in the end (delta: -66.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-09-24 22:43:32,689 INFO L168 Benchmark]: Boogie Preprocessor took 63.82 ms. Allocated memory is still 202.9 MB. Free memory was 166.4 MB in the beginning and 163.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-24 22:43:32,690 INFO L168 Benchmark]: RCFGBuilder took 608.44 ms. Allocated memory is still 202.9 MB. Free memory was 163.7 MB in the beginning and 116.4 MB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:43:32,691 INFO L168 Benchmark]: TraceAbstraction took 346.86 ms. Allocated memory is still 202.9 MB. Free memory was 115.7 MB in the beginning and 101.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-09-24 22:43:32,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.70 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 99.7 MB in the beginning and 166.4 MB in the end (delta: -66.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.82 ms. Allocated memory is still 202.9 MB. Free memory was 166.4 MB in the beginning and 163.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 608.44 ms. Allocated memory is still 202.9 MB. Free memory was 163.7 MB in the beginning and 116.4 MB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 346.86 ms. Allocated memory is still 202.9 MB. Free memory was 115.7 MB in the beginning and 101.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. 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, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...