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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:09:34,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:09:34,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:09:34,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:09:34,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:09:34,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:09:34,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:09:34,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:09:34,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:09:34,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:09:34,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:09:34,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:09:34,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:09:34,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:09:34,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:09:34,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:09:34,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:09:34,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:09:34,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:09:34,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:09:34,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:09:34,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:09:34,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:09:34,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:09:34,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:09:34,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:09:34,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:09:34,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:09:34,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:09:34,205 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:09:34,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:09:34,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:09:34,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:09:34,211 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:09:34,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:09:34,212 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:09:34,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:09:34,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:09:34,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:09:34,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:09:34,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:09:34,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:09:34,215 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:09:34,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:09:34,215 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:09:34,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:09:34,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:09:34,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:09:34,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:09:34,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:09:34,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:09:34,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:09:34,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:09:34,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:09:34,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:09:34,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:09:34,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:09:34,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:09:34,480 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:09:34,497 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:09:34,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:09:34,502 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:09:34,502 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:09:34,503 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test13.c [2019-10-13 19:09:34,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d7439213/4ae53e60eae147959a78958aaaa6b397/FLAG28e10c871 [2019-10-13 19:09:35,004 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:09:35,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test13.c [2019-10-13 19:09:35,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d7439213/4ae53e60eae147959a78958aaaa6b397/FLAG28e10c871 [2019-10-13 19:09:35,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d7439213/4ae53e60eae147959a78958aaaa6b397 [2019-10-13 19:09:35,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:09:35,399 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:09:35,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:09:35,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:09:35,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:09:35,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:35" (1/1) ... [2019-10-13 19:09:35,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41437b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35, skipping insertion in model container [2019-10-13 19:09:35,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:35" (1/1) ... [2019-10-13 19:09:35,415 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:09:35,432 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:09:35,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:09:35,599 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:09:35,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:09:35,632 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:09:35,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35 WrapperNode [2019-10-13 19:09:35,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:09:35,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:09:35,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:09:35,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:09:35,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35" (1/1) ... [2019-10-13 19:09:35,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35" (1/1) ... [2019-10-13 19:09:35,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35" (1/1) ... [2019-10-13 19:09:35,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35" (1/1) ... [2019-10-13 19:09:35,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35" (1/1) ... [2019-10-13 19:09:35,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35" (1/1) ... [2019-10-13 19:09:35,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35" (1/1) ... [2019-10-13 19:09:35,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:09:35,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:09:35,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:09:35,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:09:35,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-13 19:09:35,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:09:35,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:09:35,806 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-13 19:09:35,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:09:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:09:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-13 19:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:09:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:09:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:09:36,012 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:09:36,013 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:09:36,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:36 BoogieIcfgContainer [2019-10-13 19:09:36,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:09:36,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:09:36,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:09:36,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:09:36,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:09:35" (1/3) ... [2019-10-13 19:09:36,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548dfa5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:36, skipping insertion in model container [2019-10-13 19:09:36,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:35" (2/3) ... [2019-10-13 19:09:36,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548dfa5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:36, skipping insertion in model container [2019-10-13 19:09:36,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:36" (3/3) ... [2019-10-13 19:09:36,023 INFO L109 eAbstractionObserver]: Analyzing ICFG test13.c [2019-10-13 19:09:36,034 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:09:36,042 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:09:36,076 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:09:36,146 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:09:36,146 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:09:36,146 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:09:36,146 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:09:36,146 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:09:36,147 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:09:36,147 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:09:36,148 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:09:36,171 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-13 19:09:36,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-13 19:09:36,179 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:09:36,180 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:09:36,182 INFO L410 AbstractCegarLoop]: === Iteration 1 === [checkErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:09:36,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:09:36,187 INFO L82 PathProgramCache]: Analyzing trace with hash 562540648, now seen corresponding path program 1 times [2019-10-13 19:09:36,193 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:09:36,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004645501] [2019-10-13 19:09:36,194 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:09:36,194 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:09:36,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:09:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:09:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:09:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:09:36,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004645501] [2019-10-13 19:09:36,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:09:36,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:09:36,561 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746290636] [2019-10-13 19:09:36,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:09:36,567 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:09:36,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:09:36,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:09:36,585 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2019-10-13 19:09:36,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:09:36,856 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-10-13 19:09:36,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:09:36,858 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-13 19:09:36,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:09:36,866 INFO L225 Difference]: With dead ends: 24 [2019-10-13 19:09:36,866 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:09:36,870 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:09:36,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:09:36,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:09:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:09:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:09:36,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-10-13 19:09:36,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:09:36,903 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:09:36,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:09:36,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:09:36,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:09:36,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:09:37,060 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:09:37,061 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= ~pa~0.base |old(~pa~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= ~pa~0.offset |old(~pa~0.offset)|) (= ~pb~0.offset |old(~pb~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|) (= ~pb~0.base |old(~pb~0.base)|)) [2019-10-13 19:09:37,061 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:09:37,061 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:09:37,062 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|)) [2019-10-13 19:09:37,062 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:09:37,062 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:09:37,062 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 17 20) the Hoare annotation is: true [2019-10-13 19:09:37,063 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 17 20) no Hoare annotation was computed. [2019-10-13 19:09:37,063 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 17 20) no Hoare annotation was computed. [2019-10-13 19:09:37,063 INFO L443 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-10-13 19:09:37,064 INFO L446 ceAbstractionStarter]: At program point checkENTRY(lines 4 12) the Hoare annotation is: true [2019-10-13 19:09:37,064 INFO L443 ceAbstractionStarter]: For program point checkErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-10-13 19:09:37,064 INFO L443 ceAbstractionStarter]: For program point checkFINAL(lines 4 12) no Hoare annotation was computed. [2019-10-13 19:09:37,065 INFO L439 ceAbstractionStarter]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= |~#a~0.base| ~pa~0.base)) (not (= |check_#in~b.offset| |check_#in~a.offset|)) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= |check_#in~a.base| |check_#in~b.base|))) [2019-10-13 19:09:37,065 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-13 19:09:37,065 INFO L443 ceAbstractionStarter]: For program point checkEXIT(lines 4 12) no Hoare annotation was computed. [2019-10-13 19:09:37,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:09:37 BoogieIcfgContainer [2019-10-13 19:09:37,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:09:37,104 INFO L168 Benchmark]: Toolchain (without parser) took 1702.59 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 104.4 MB in the beginning and 102.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,105 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.94 ms. Allocated memory is still 146.8 MB. Free memory was 104.2 MB in the beginning and 94.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,110 INFO L168 Benchmark]: Boogie Preprocessor took 115.30 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 94.6 MB in the beginning and 183.7 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,111 INFO L168 Benchmark]: RCFGBuilder took 266.00 ms. Allocated memory is still 205.0 MB. Free memory was 183.7 MB in the beginning and 170.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,113 INFO L168 Benchmark]: TraceAbstraction took 1083.74 ms. Allocated memory is still 205.0 MB. Free memory was 169.7 MB in the beginning and 102.2 MB in the end (delta: 67.5 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,125 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 232.94 ms. Allocated memory is still 146.8 MB. Free memory was 104.2 MB in the beginning and 94.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.30 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 94.6 MB in the beginning and 183.7 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 266.00 ms. Allocated memory is still 205.0 MB. Free memory was 183.7 MB in the beginning and 170.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1083.74 ms. Allocated memory is still 205.0 MB. Free memory was 169.7 MB in the beginning and 102.2 MB in the end (delta: 67.5 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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: 4]: Loop Invariant Derived loop invariant: ((!(a == pa) || !(b == a)) || !(a == pa)) || !(a == b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 9 SDtfs, 16 SDslu, 14 SDs, 0 SdLazy, 18 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 64 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 116 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 640 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...