/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/signextension2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 02:11:28,773 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-22 02:11:28,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 02:11:28,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 02:11:28,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 02:11:28,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 02:11:28,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 02:11:28,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 02:11:28,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 02:11:28,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 02:11:28,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 02:11:28,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 02:11:28,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 02:11:28,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 02:11:28,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 02:11:28,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 02:11:28,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 02:11:28,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 02:11:28,887 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 [2020-08-22 02:11:28,921 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 02:11:28,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 02:11:28,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 02:11:28,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 02:11:28,924 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 02:11:28,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 02:11:28,924 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 02:11:28,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 02:11:28,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 02:11:28,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 02:11:28,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 02:11:28,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 02:11:28,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 02:11:28,927 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 02:11:28,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 02:11:28,927 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 02:11:28,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 02:11:28,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 02:11:28,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 02:11:28,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 02:11:28,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 02:11:28,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 02:11:28,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 02:11:28,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 02:11:28,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 02:11:28,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 02:11:28,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 02:11:28,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 02:11:28,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 02:11:28,930 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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-08-22 02:11:29,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 02:11:29,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 02:11:29,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 02:11:29,230 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 02:11:29,231 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 02:11:29,231 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension2-1.c [2020-08-22 02:11:29,293 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a2b19690/4c5099f51c044bec844de176a2d31aa9/FLAGc74121154 [2020-08-22 02:11:29,738 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 02:11:29,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/signextension2-1.c [2020-08-22 02:11:29,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a2b19690/4c5099f51c044bec844de176a2d31aa9/FLAGc74121154 [2020-08-22 02:11:30,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a2b19690/4c5099f51c044bec844de176a2d31aa9 [2020-08-22 02:11:30,171 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 02:11:30,173 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 02:11:30,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 02:11:30,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 02:11:30,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 02:11:30,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:11:30" (1/1) ... [2020-08-22 02:11:30,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ca24e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30, skipping insertion in model container [2020-08-22 02:11:30,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:11:30" (1/1) ... [2020-08-22 02:11:30,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 02:11:30,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 02:11:30,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:11:30,385 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 02:11:30,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:11:30,409 INFO L208 MainTranslator]: Completed translation [2020-08-22 02:11:30,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30 WrapperNode [2020-08-22 02:11:30,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 02:11:30,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 02:11:30,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 02:11:30,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 02:11:30,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30" (1/1) ... [2020-08-22 02:11:30,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30" (1/1) ... [2020-08-22 02:11:30,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30" (1/1) ... [2020-08-22 02:11:30,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30" (1/1) ... [2020-08-22 02:11:30,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30" (1/1) ... [2020-08-22 02:11:30,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30" (1/1) ... [2020-08-22 02:11:30,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30" (1/1) ... [2020-08-22 02:11:30,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 02:11:30,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 02:11:30,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 02:11:30,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 02:11:30,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30" (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 [2020-08-22 02:11:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 02:11:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 02:11:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 02:11:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 02:11:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 02:11:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 02:11:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 02:11:30,728 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 02:11:30,728 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 02:11:30,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:11:30 BoogieIcfgContainer [2020-08-22 02:11:30,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 02:11:30,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 02:11:30,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 02:11:30,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 02:11:30,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 02:11:30" (1/3) ... [2020-08-22 02:11:30,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a716deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:11:30, skipping insertion in model container [2020-08-22 02:11:30,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:11:30" (2/3) ... [2020-08-22 02:11:30,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a716deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:11:30, skipping insertion in model container [2020-08-22 02:11:30,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:11:30" (3/3) ... [2020-08-22 02:11:30,740 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension2-1.c [2020-08-22 02:11:30,753 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 02:11:30,764 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 02:11:30,779 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 02:11:30,810 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 02:11:30,810 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 02:11:30,810 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 02:11:30,810 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 02:11:30,810 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 02:11:30,811 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 02:11:30,811 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 02:11:30,811 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 02:11:30,826 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-08-22 02:11:30,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-08-22 02:11:30,832 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:11:30,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:11:30,833 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:11:30,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:11:30,838 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2020-08-22 02:11:30,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:11:30,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486214733] [2020-08-22 02:11:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:11:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:11:31,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:11:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:11:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 02:11:31,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486214733] [2020-08-22 02:11:31,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:11:31,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 02:11:31,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991355723] [2020-08-22 02:11:31,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 02:11:31,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:11:31,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 02:11:31,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 02:11:31,214 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2020-08-22 02:11:31,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:11:31,244 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-08-22 02:11:31,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 02:11:31,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-08-22 02:11:31,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:11:31,255 INFO L225 Difference]: With dead ends: 16 [2020-08-22 02:11:31,255 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 02:11:31,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 02:11:31,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 02:11:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 02:11:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 02:11:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 02:11:31,290 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-08-22 02:11:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:11:31,291 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 02:11:31,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 02:11:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 02:11:31,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 02:11:31,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 02:11:31,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 02:11:31,373 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 02:11:31,373 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 02:11:31,373 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 02:11:31,374 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 02:11:31,374 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 02:11:31,374 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 02:11:31,374 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-08-22 02:11:31,374 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 3 19) the Hoare annotation is: true [2020-08-22 02:11:31,375 INFO L264 CegarLoopResult]: At program point L13(lines 3 19) the Hoare annotation is: false [2020-08-22 02:11:31,375 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 3 19) no Hoare annotation was computed. [2020-08-22 02:11:31,375 INFO L268 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-08-22 02:11:31,375 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 3 19) no Hoare annotation was computed. [2020-08-22 02:11:31,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 02:11:31 BoogieIcfgContainer [2020-08-22 02:11:31,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 02:11:31,390 INFO L168 Benchmark]: Toolchain (without parser) took 1215.39 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.9 MB in the beginning and 141.9 MB in the end (delta: -39.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-08-22 02:11:31,391 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 02:11:31,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.33 ms. Allocated memory is still 140.5 MB. Free memory was 102.7 MB in the beginning and 93.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-08-22 02:11:31,393 INFO L168 Benchmark]: Boogie Preprocessor took 106.83 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 93.4 MB in the beginning and 182.1 MB in the end (delta: -88.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-22 02:11:31,394 INFO L168 Benchmark]: RCFGBuilder took 214.33 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 171.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-08-22 02:11:31,395 INFO L168 Benchmark]: TraceAbstraction took 653.32 ms. Allocated memory is still 203.4 MB. Free memory was 171.2 MB in the beginning and 141.9 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-08-22 02:11:31,399 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 236.33 ms. Allocated memory is still 140.5 MB. Free memory was 102.7 MB in the beginning and 93.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.83 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 93.4 MB in the beginning and 182.1 MB in the end (delta: -88.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 214.33 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 171.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 653.32 ms. Allocated memory is still 203.4 MB. Free memory was 171.2 MB in the beginning and 141.9 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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: 3]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 234 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...