/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/psyco/psyco_math_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:26:10,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:26:10,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:26:10,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:26:10,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:26:10,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:26:10,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:26:10,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:26:10,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:26:10,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:26:10,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:26:10,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:26:10,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:26:10,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:26:10,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:26:10,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:26:10,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:26:10,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:26:10,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:26:10,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:26:10,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:26:10,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:26:10,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:26:10,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:26:10,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:26:10,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:26:10,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:26:10,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:26:10,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:26:10,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:26:10,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:26:10,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:26:10,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:26:10,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:26:10,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:26:10,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:26:10,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:26:10,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:26:10,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:26:10,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:26:10,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:26:10,452 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 [2020-10-27 22:26:10,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:26:10,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:26:10,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:26:10,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:26:10,514 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:26:10,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:26:10,515 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:26:10,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:26:10,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:26:10,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:26:10,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:26:10,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:26:10,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:26:10,517 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:26:10,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:26:10,517 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:26:10,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:26:10,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:26:10,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:26:10,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:26:10,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:26:10,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:26:10,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:26:10,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:26:10,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:26:10,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:26:10,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:26:10,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:26:10,520 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:26:10,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:26:10,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:26:10,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:26:10,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:26:10,997 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:26:10,998 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:26:11,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_math_1.c [2020-10-27 22:26:11,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39f950859/3edbb52745f543739a79368ff43e7a4c/FLAGd80c25ca6 [2020-10-27 22:26:11,901 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:26:11,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/psyco/psyco_math_1.c [2020-10-27 22:26:11,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39f950859/3edbb52745f543739a79368ff43e7a4c/FLAGd80c25ca6 [2020-10-27 22:26:12,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39f950859/3edbb52745f543739a79368ff43e7a4c [2020-10-27 22:26:12,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:26:12,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:26:12,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:26:12,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:26:12,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:26:12,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:26:12" (1/1) ... [2020-10-27 22:26:12,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f3b34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12, skipping insertion in model container [2020-10-27 22:26:12,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:26:12" (1/1) ... [2020-10-27 22:26:12,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:26:12,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:26:12,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:26:12,663 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:26:12,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:26:12,787 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:26:12,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12 WrapperNode [2020-10-27 22:26:12,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:26:12,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:26:12,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:26:12,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:26:12,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12" (1/1) ... [2020-10-27 22:26:12,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12" (1/1) ... [2020-10-27 22:26:12,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12" (1/1) ... [2020-10-27 22:26:12,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12" (1/1) ... [2020-10-27 22:26:12,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12" (1/1) ... [2020-10-27 22:26:12,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12" (1/1) ... [2020-10-27 22:26:12,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12" (1/1) ... [2020-10-27 22:26:12,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:26:12,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:26:12,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:26:12,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:26:12,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12" (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 [2020-10-27 22:26:13,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:26:13,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:26:13,007 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:26:13,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:26:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:26:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:26:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:26:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:26:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:26:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:26:13,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:26:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:26:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:26:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:26:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:26:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:26:13,865 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:26:13,865 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-27 22:26:13,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:26:13 BoogieIcfgContainer [2020-10-27 22:26:13,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:26:13,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:26:13,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:26:13,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:26:13,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:26:12" (1/3) ... [2020-10-27 22:26:13,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227d7d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:26:13, skipping insertion in model container [2020-10-27 22:26:13,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:26:12" (2/3) ... [2020-10-27 22:26:13,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227d7d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:26:13, skipping insertion in model container [2020-10-27 22:26:13,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:26:13" (3/3) ... [2020-10-27 22:26:13,878 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_math_1.c [2020-10-27 22:26:13,894 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:26:13,902 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:26:13,917 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:26:13,952 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:26:13,952 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:26:13,952 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:26:13,952 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:26:13,952 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:26:13,953 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:26:13,953 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:26:13,953 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:26:13,973 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-10-27 22:26:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-27 22:26:13,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:26:13,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:26:13,981 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:26:13,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:26:13,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1756844398, now seen corresponding path program 1 times [2020-10-27 22:26:13,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:26:13,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519358047] [2020-10-27 22:26:13,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:26:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:26:14,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:26:14,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:26:14,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 22:26:14,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:26:14,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-27 22:26:14,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:26:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:26:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 22:26:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:26:14,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:26:14,590 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 22:26:14,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:26:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:26:14,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:26:14,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:26:14,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:26:14,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:26:14,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:26:14,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:26:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:26:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:26:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:26:14,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:26:14,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:26:14,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519358047] [2020-10-27 22:26:14,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:26:14,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:26:14,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189030436] [2020-10-27 22:26:14,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:26:14,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:26:14,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:26:14,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:26:14,660 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 3 states. [2020-10-27 22:26:14,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:26:14,733 INFO L93 Difference]: Finished difference Result 143 states and 262 transitions. [2020-10-27 22:26:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:26:14,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-27 22:26:14,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:26:14,742 INFO L225 Difference]: With dead ends: 143 [2020-10-27 22:26:14,742 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 22:26:14,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:26:14,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 22:26:14,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 22:26:14,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 22:26:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 22:26:14,775 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-27 22:26:14,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:26:14,776 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 22:26:14,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:26:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 22:26:14,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 22:26:14,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:26:14,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 22:26:14,969 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 22:26:14,969 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 22:26:14,969 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 22:26:14,969 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 22:26:14,970 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 22:26:14,970 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~m_IntMath~0 |old(~m_IntMath~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~m_mod_2~0 |old(~m_mod_2~0)|) (= ~m_factorial_2~0 |old(~m_factorial_2~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~m_isPowerOfTwo~0 |old(~m_isPowerOfTwo~0)|) (= ~m_checkedMultiply~0 |old(~m_checkedMultiply~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~m_checkedAdd~0 |old(~m_checkedAdd~0)|) (= ~m_checkedSubtract~0 |old(~m_checkedSubtract~0)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~m_mod_1~0 |old(~m_mod_1~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~m_log2~0 |old(~m_log2~0)|) (= ~m_factorial_1~0 |old(~m_factorial_1~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~m_log10~0 |old(~m_log10~0)|)) [2020-10-27 22:26:14,970 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 22:26:14,970 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 22:26:14,970 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 22:26:14,971 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 22:26:14,971 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 22:26:14,971 INFO L274 CegarLoopResult]: For program point L217(lines 217 227) no Hoare annotation was computed. [2020-10-27 22:26:14,971 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 20 363) no Hoare annotation was computed. [2020-10-27 22:26:14,971 INFO L274 CegarLoopResult]: For program point L184(lines 184 198) no Hoare annotation was computed. [2020-10-27 22:26:14,971 INFO L274 CegarLoopResult]: For program point L52(lines 52 66) no Hoare annotation was computed. [2020-10-27 22:26:14,971 INFO L274 CegarLoopResult]: For program point L267(lines 267 269) no Hoare annotation was computed. [2020-10-27 22:26:14,972 INFO L274 CegarLoopResult]: For program point L201(lines 201 212) no Hoare annotation was computed. [2020-10-27 22:26:14,972 INFO L274 CegarLoopResult]: For program point L251(lines 251 253) no Hoare annotation was computed. [2020-10-27 22:26:14,972 INFO L274 CegarLoopResult]: For program point L119(lines 119 134) no Hoare annotation was computed. [2020-10-27 22:26:14,972 INFO L274 CegarLoopResult]: For program point L169(lines 169 183) no Hoare annotation was computed. [2020-10-27 22:26:14,972 INFO L274 CegarLoopResult]: For program point L103(lines 103 118) no Hoare annotation was computed. [2020-10-27 22:26:14,972 INFO L274 CegarLoopResult]: For program point L70(lines 70 137) no Hoare annotation was computed. [2020-10-27 22:26:14,972 INFO L274 CegarLoopResult]: For program point L186(lines 186 196) no Hoare annotation was computed. [2020-10-27 22:26:14,973 INFO L274 CegarLoopResult]: For program point L87(lines 87 102) no Hoare annotation was computed. [2020-10-27 22:26:14,973 INFO L274 CegarLoopResult]: For program point L54(lines 54 64) no Hoare annotation was computed. [2020-10-27 22:26:14,973 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 20 363) no Hoare annotation was computed. [2020-10-27 22:26:14,973 INFO L274 CegarLoopResult]: For program point L236(lines 236 238) no Hoare annotation was computed. [2020-10-27 22:26:14,973 INFO L274 CegarLoopResult]: For program point L71(lines 71 86) no Hoare annotation was computed. [2020-10-27 22:26:14,973 INFO L274 CegarLoopResult]: For program point L154(lines 154 168) no Hoare annotation was computed. [2020-10-27 22:26:14,973 INFO L274 CegarLoopResult]: For program point L121(lines 121 132) no Hoare annotation was computed. [2020-10-27 22:26:14,974 INFO L274 CegarLoopResult]: For program point L171(lines 171 181) no Hoare annotation was computed. [2020-10-27 22:26:14,974 INFO L274 CegarLoopResult]: For program point L138(lines 138 355) no Hoare annotation was computed. [2020-10-27 22:26:14,974 INFO L274 CegarLoopResult]: For program point L105(lines 105 116) no Hoare annotation was computed. [2020-10-27 22:26:14,974 INFO L274 CegarLoopResult]: For program point L221(lines 221 223) no Hoare annotation was computed. [2020-10-27 22:26:14,974 INFO L274 CegarLoopResult]: For program point L89(lines 89 100) no Hoare annotation was computed. [2020-10-27 22:26:14,974 INFO L274 CegarLoopResult]: For program point L205(lines 205 207) no Hoare annotation was computed. [2020-10-27 22:26:14,974 INFO L274 CegarLoopResult]: For program point L139(lines 139 153) no Hoare annotation was computed. [2020-10-27 22:26:14,975 INFO L274 CegarLoopResult]: For program point L73(lines 73 84) no Hoare annotation was computed. [2020-10-27 22:26:14,975 INFO L277 CegarLoopResult]: At program point L354(lines 28 358) the Hoare annotation is: true [2020-10-27 22:26:14,975 INFO L274 CegarLoopResult]: For program point L156(lines 156 166) no Hoare annotation was computed. [2020-10-27 22:26:14,975 INFO L274 CegarLoopResult]: For program point L338(lines 338 352) no Hoare annotation was computed. [2020-10-27 22:26:14,975 INFO L274 CegarLoopResult]: For program point L190(lines 190 192) no Hoare annotation was computed. [2020-10-27 22:26:14,975 INFO L274 CegarLoopResult]: For program point L58(lines 58 60) no Hoare annotation was computed. [2020-10-27 22:26:14,976 INFO L274 CegarLoopResult]: For program point L141(lines 141 151) no Hoare annotation was computed. [2020-10-27 22:26:14,976 INFO L274 CegarLoopResult]: For program point L323(lines 323 337) no Hoare annotation was computed. [2020-10-27 22:26:14,976 INFO L274 CegarLoopResult]: For program point L125(lines 125 127) no Hoare annotation was computed. [2020-10-27 22:26:14,976 INFO L274 CegarLoopResult]: For program point L340(lines 340 350) no Hoare annotation was computed. [2020-10-27 22:26:14,976 INFO L274 CegarLoopResult]: For program point L307(lines 307 322) no Hoare annotation was computed. [2020-10-27 22:26:14,976 INFO L274 CegarLoopResult]: For program point L175(lines 175 177) no Hoare annotation was computed. [2020-10-27 22:26:14,976 INFO L274 CegarLoopResult]: For program point L109(lines 109 111) no Hoare annotation was computed. [2020-10-27 22:26:14,976 INFO L274 CegarLoopResult]: For program point L291(lines 291 306) no Hoare annotation was computed. [2020-10-27 22:26:14,977 INFO L274 CegarLoopResult]: For program point L93(lines 93 95) no Hoare annotation was computed. [2020-10-27 22:26:14,977 INFO L274 CegarLoopResult]: For program point L77(lines 77 79) no Hoare annotation was computed. [2020-10-27 22:26:14,977 INFO L274 CegarLoopResult]: For program point L325(lines 325 335) no Hoare annotation was computed. [2020-10-27 22:26:14,977 INFO L274 CegarLoopResult]: For program point L160(lines 160 162) no Hoare annotation was computed. [2020-10-27 22:26:14,977 INFO L277 CegarLoopResult]: At program point L28-2(lines 28 358) the Hoare annotation is: true [2020-10-27 22:26:14,977 INFO L274 CegarLoopResult]: For program point L28-3(lines 28 358) no Hoare annotation was computed. [2020-10-27 22:26:14,977 INFO L274 CegarLoopResult]: For program point L309(lines 309 320) no Hoare annotation was computed. [2020-10-27 22:26:14,978 INFO L274 CegarLoopResult]: For program point L276(lines 276 290) no Hoare annotation was computed. [2020-10-27 22:26:14,978 INFO L274 CegarLoopResult]: For program point L293(lines 293 304) no Hoare annotation was computed. [2020-10-27 22:26:14,978 INFO L274 CegarLoopResult]: For program point L145(lines 145 147) no Hoare annotation was computed. [2020-10-27 22:26:14,978 INFO L274 CegarLoopResult]: For program point L261(lines 261 275) no Hoare annotation was computed. [2020-10-27 22:26:14,978 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 20 363) the Hoare annotation is: true [2020-10-27 22:26:14,978 INFO L274 CegarLoopResult]: For program point L344(lines 344 346) no Hoare annotation was computed. [2020-10-27 22:26:14,978 INFO L274 CegarLoopResult]: For program point L278(lines 278 288) no Hoare annotation was computed. [2020-10-27 22:26:14,979 INFO L274 CegarLoopResult]: For program point L245(lines 245 260) no Hoare annotation was computed. [2020-10-27 22:26:14,979 INFO L270 CegarLoopResult]: At program point L345(lines 20 363) the Hoare annotation is: false [2020-10-27 22:26:14,979 INFO L274 CegarLoopResult]: For program point L362(line 362) no Hoare annotation was computed. [2020-10-27 22:26:14,979 INFO L274 CegarLoopResult]: For program point L329(lines 329 331) no Hoare annotation was computed. [2020-10-27 22:26:14,979 INFO L274 CegarLoopResult]: For program point L263(lines 263 273) no Hoare annotation was computed. [2020-10-27 22:26:14,979 INFO L274 CegarLoopResult]: For program point L230(lines 230 244) no Hoare annotation was computed. [2020-10-27 22:26:14,979 INFO L274 CegarLoopResult]: For program point L313(lines 313 315) no Hoare annotation was computed. [2020-10-27 22:26:14,980 INFO L274 CegarLoopResult]: For program point L247(lines 247 258) no Hoare annotation was computed. [2020-10-27 22:26:14,980 INFO L274 CegarLoopResult]: For program point L297(lines 297 299) no Hoare annotation was computed. [2020-10-27 22:26:14,980 INFO L274 CegarLoopResult]: For program point L215(lines 215 229) no Hoare annotation was computed. [2020-10-27 22:26:14,980 INFO L274 CegarLoopResult]: For program point L232(lines 232 242) no Hoare annotation was computed. [2020-10-27 22:26:14,980 INFO L274 CegarLoopResult]: For program point L199(lines 199 214) no Hoare annotation was computed. [2020-10-27 22:26:14,980 INFO L274 CegarLoopResult]: For program point L282(lines 282 284) no Hoare annotation was computed. [2020-10-27 22:26:14,980 INFO L274 CegarLoopResult]: For program point L51(lines 51 69) no Hoare annotation was computed. [2020-10-27 22:26:14,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:26:14 BoogieIcfgContainer [2020-10-27 22:26:14,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:26:14,994 INFO L168 Benchmark]: Toolchain (without parser) took 2800.05 ms. Allocated memory is still 161.5 MB. Free memory was 138.1 MB in the beginning and 103.7 MB in the end (delta: 34.4 MB). Peak memory consumption was 35.6 MB. Max. memory is 8.0 GB. [2020-10-27 22:26:14,994 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 125.8 MB. Free memory is still 100.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:26:14,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.21 ms. Allocated memory is still 161.5 MB. Free memory was 137.5 MB in the beginning and 125.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-27 22:26:14,996 INFO L168 Benchmark]: Boogie Preprocessor took 110.33 ms. Allocated memory is still 161.5 MB. Free memory was 125.5 MB in the beginning and 123.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 22:26:14,997 INFO L168 Benchmark]: RCFGBuilder took 958.43 ms. Allocated memory is still 161.5 MB. Free memory was 123.2 MB in the beginning and 126.6 MB in the end (delta: -3.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-27 22:26:14,998 INFO L168 Benchmark]: TraceAbstraction took 1121.75 ms. Allocated memory is still 161.5 MB. Free memory was 126.0 MB in the beginning and 103.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 8.0 GB. [2020-10-27 22:26:15,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 125.8 MB. Free memory is still 100.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 591.21 ms. Allocated memory is still 161.5 MB. Free memory was 137.5 MB in the beginning and 125.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.33 ms. Allocated memory is still 161.5 MB. Free memory was 125.5 MB in the beginning and 123.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 958.43 ms. Allocated memory is still 161.5 MB. Free memory was 123.2 MB in the beginning and 126.6 MB in the end (delta: -3.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1121.75 ms. Allocated memory is still 161.5 MB. Free memory was 126.0 MB in the beginning and 103.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 92 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred 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: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 71 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 189 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 988 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 proved your program to be correct! Received shutdown request...