/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=LOWLEXORDER --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 18:09:22,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:09:22,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:09:22,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:09:22,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:09:22,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:09:22,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:09:22,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:09:22,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:09:22,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:09:22,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:09:22,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:09:22,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:09:22,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:09:22,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:09:22,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:09:22,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:09:22,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:09:22,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:09:22,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:09:22,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:09:22,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:09:22,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:09:22,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:09:22,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:09:22,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:09:22,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:09:22,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:09:22,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:09:22,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:09:22,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:09:22,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:09:22,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:09:22,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:09:22,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:09:22,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:09:22,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:09:22,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:09:22,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:09:22,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:09:22,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:09:22,329 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 18:09:22,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:09:22,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:09:22,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:09:22,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:09:22,380 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:09:22,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:09:22,381 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:09:22,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:09:22,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:09:22,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:09:22,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:09:22,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:09:22,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:09:22,384 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:09:22,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:09:22,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:09:22,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:09:22,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:09:22,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:09:22,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:09:22,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:09:22,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:09:22,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:09:22,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:09:22,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:09:22,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:09:22,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:09:22,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:09:22,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:09:22,387 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=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-08-21 18:09:22,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:09:22,687 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:09:22,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:09:22,692 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:09:22,693 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:09:22,693 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2020-08-21 18:09:22,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f3bdb1a0/d2d101ebf9e84aba85c8a7283e2e40ca/FLAGece106b39 [2020-08-21 18:09:23,274 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:09:23,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/fo_test.i [2020-08-21 18:09:23,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f3bdb1a0/d2d101ebf9e84aba85c8a7283e2e40ca/FLAGece106b39 [2020-08-21 18:09:23,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f3bdb1a0/d2d101ebf9e84aba85c8a7283e2e40ca [2020-08-21 18:09:23,578 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:09:23,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:09:23,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:09:23,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:09:23,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:09:23,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:09:23" (1/1) ... [2020-08-21 18:09:23,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a56f015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:23, skipping insertion in model container [2020-08-21 18:09:23,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:09:23" (1/1) ... [2020-08-21 18:09:23,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:09:23,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:09:24,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:09:24,111 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:09:24,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:09:24,250 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:09:24,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24 WrapperNode [2020-08-21 18:09:24,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:09:24,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:09:24,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:09:24,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:09:24,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:09:24,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:09:24,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:09:24,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:09:24,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (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 18:09:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:09:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:09:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-21 18:09:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2020-08-21 18:09:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:09:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2020-08-21 18:09:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2020-08-21 18:09:24,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:09:24,388 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-21 18:09:24,388 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-21 18:09:24,388 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-21 18:09:24,388 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-21 18:09:24,388 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-21 18:09:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-21 18:09:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-21 18:09:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-21 18:09:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-21 18:09:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-21 18:09:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-21 18:09:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-21 18:09:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-21 18:09:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-21 18:09:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-21 18:09:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-21 18:09:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-21 18:09:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-21 18:09:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-21 18:09:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-21 18:09:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-21 18:09:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-21 18:09:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-21 18:09:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-21 18:09:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-21 18:09:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-21 18:09:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-21 18:09:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-21 18:09:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-21 18:09:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-21 18:09:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-21 18:09:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-21 18:09:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-21 18:09:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-21 18:09:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-21 18:09:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-21 18:09:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-21 18:09:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-21 18:09:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-21 18:09:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-21 18:09:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-21 18:09:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-21 18:09:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-21 18:09:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-21 18:09:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-21 18:09:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-21 18:09:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-21 18:09:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-21 18:09:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-21 18:09:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-21 18:09:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 18:09:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 18:09:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-21 18:09:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 18:09:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-21 18:09:24,397 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-21 18:09:24,397 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-21 18:09:24,397 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-21 18:09:24,397 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 18:09:24,397 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-21 18:09:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-21 18:09:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 18:09:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-21 18:09:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-21 18:09:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-08-21 18:09:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-21 18:09:24,399 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-21 18:09:24,399 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-21 18:09:24,399 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-21 18:09:24,399 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-21 18:09:24,399 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-21 18:09:24,399 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-21 18:09:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-21 18:09:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-21 18:09:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-21 18:09:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-21 18:09:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-21 18:09:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-21 18:09:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-21 18:09:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-21 18:09:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-21 18:09:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-21 18:09:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-21 18:09:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-21 18:09:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-21 18:09:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-21 18:09:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-21 18:09:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-21 18:09:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-21 18:09:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-21 18:09:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-21 18:09:24,403 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-21 18:09:24,403 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-21 18:09:24,403 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-21 18:09:24,403 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-21 18:09:24,403 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-21 18:09:24,403 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-21 18:09:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-21 18:09:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-21 18:09:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-08-21 18:09:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-21 18:09:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-21 18:09:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2020-08-21 18:09:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2020-08-21 18:09:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2020-08-21 18:09:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2020-08-21 18:09:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2020-08-21 18:09:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2020-08-21 18:09:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2020-08-21 18:09:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2020-08-21 18:09:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2020-08-21 18:09:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2020-08-21 18:09:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2020-08-21 18:09:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2020-08-21 18:09:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2020-08-21 18:09:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2020-08-21 18:09:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2020-08-21 18:09:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2020-08-21 18:09:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2020-08-21 18:09:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2020-08-21 18:09:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2020-08-21 18:09:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2020-08-21 18:09:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2020-08-21 18:09:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2020-08-21 18:09:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2020-08-21 18:09:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2020-08-21 18:09:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure open [2020-08-21 18:09:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2020-08-21 18:09:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2020-08-21 18:09:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2020-08-21 18:09:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2020-08-21 18:09:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2020-08-21 18:09:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2020-08-21 18:09:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-08-21 18:09:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 18:09:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2020-08-21 18:09:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2020-08-21 18:09:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:09:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 18:09:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 18:09:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:09:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:09:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:09:24,913 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:09:24,913 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 18:09:24,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:09:24 BoogieIcfgContainer [2020-08-21 18:09:24,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:09:24,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:09:24,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:09:24,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:09:24,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:09:23" (1/3) ... [2020-08-21 18:09:24,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2272e87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:09:24, skipping insertion in model container [2020-08-21 18:09:24,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (2/3) ... [2020-08-21 18:09:24,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2272e87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:09:24, skipping insertion in model container [2020-08-21 18:09:24,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:09:24" (3/3) ... [2020-08-21 18:09:24,926 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2020-08-21 18:09:24,937 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:09:24,944 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:09:24,958 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:09:24,978 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:09:24,979 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:09:24,979 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:09:24,979 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:09:24,980 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:09:24,980 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:09:24,980 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:09:24,980 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:09:24,999 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-08-21 18:09:25,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 18:09:25,006 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:25,007 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 18:09:25,008 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:25,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:25,014 INFO L82 PathProgramCache]: Analyzing trace with hash -722045737, now seen corresponding path program 1 times [2020-08-21 18:09:25,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:25,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934499371] [2020-08-21 18:09:25,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:09:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:09:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,302 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 18:09:25,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934499371] [2020-08-21 18:09:25,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:09:25,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 18:09:25,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307363975] [2020-08-21 18:09:25,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 18:09:25,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:09:25,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 18:09:25,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 18:09:25,338 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2020-08-21 18:09:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:09:25,588 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2020-08-21 18:09:25,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 18:09:25,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-08-21 18:09:25,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:09:25,601 INFO L225 Difference]: With dead ends: 50 [2020-08-21 18:09:25,601 INFO L226 Difference]: Without dead ends: 19 [2020-08-21 18:09:25,605 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 18:09:25,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-08-21 18:09:25,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-08-21 18:09:25,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-08-21 18:09:25,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-08-21 18:09:25,649 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 18 [2020-08-21 18:09:25,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:09:25,649 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-08-21 18:09:25,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 18:09:25,650 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-08-21 18:09:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 18:09:25,650 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:25,651 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 18:09:25,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:09:25,651 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:25,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1115072747, now seen corresponding path program 1 times [2020-08-21 18:09:25,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:25,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552660018] [2020-08-21 18:09:25,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 18:09:25,682 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 18:09:25,686 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 18:09:25,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:09:25,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 06:09:25 BoogieIcfgContainer [2020-08-21 18:09:25,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 18:09:25,710 INFO L168 Benchmark]: Toolchain (without parser) took 2130.12 ms. Allocated memory was 141.0 MB in the beginning and 235.4 MB in the end (delta: 94.4 MB). Free memory was 101.4 MB in the beginning and 182.4 MB in the end (delta: -81.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:25,711 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 18:09:25,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.99 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 168.6 MB in the end (delta: -67.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:25,713 INFO L168 Benchmark]: Boogie Preprocessor took 59.86 ms. Allocated memory is still 205.0 MB. Free memory was 168.6 MB in the beginning and 166.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:25,714 INFO L168 Benchmark]: RCFGBuilder took 605.69 ms. Allocated memory is still 205.0 MB. Free memory was 166.0 MB in the beginning and 120.2 MB in the end (delta: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:25,715 INFO L168 Benchmark]: TraceAbstraction took 788.73 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 119.6 MB in the beginning and 182.4 MB in the end (delta: -62.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 18:09:25,719 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 670.99 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 168.6 MB in the end (delta: -67.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.86 ms. Allocated memory is still 205.0 MB. Free memory was 168.6 MB in the beginning and 166.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 605.69 ms. Allocated memory is still 205.0 MB. Free memory was 166.0 MB in the beginning and 120.2 MB in the end (delta: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 788.73 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 119.6 MB in the beginning and 182.4 MB in the end (delta: -62.8 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: 0.7s, 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, 0.1s 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...