/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:10:56,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:10:56,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:10:56,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 22:10:56,788 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 [2019-11-23 22:10:56,807 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:10:56,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:10:56,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:10:56,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:10:56,810 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:10:56,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:10:56,810 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:10:56,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:10:56,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:10:56,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:10:56,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:10:56,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:10:56,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:10:56,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:10:56,813 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:10:56,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:10:56,814 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:10:56,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:10:56,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:10:56,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:10:56,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:10:56,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:10:56,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:10:56,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:10:56,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:10:56,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:10:56,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:10:56,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:10:56,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:10:56,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:10:57,106 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:10:57,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:10:57,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:10:57,131 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:10:57,132 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:10:57,132 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i [2019-11-23 22:10:57,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a87d01f5/254f13a522d74c2dad94d4ad5163958f/FLAGbb1352d43 [2019-11-23 22:10:57,616 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:10:57,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i [2019-11-23 22:10:57,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a87d01f5/254f13a522d74c2dad94d4ad5163958f/FLAGbb1352d43 [2019-11-23 22:10:58,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a87d01f5/254f13a522d74c2dad94d4ad5163958f [2019-11-23 22:10:58,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:10:58,037 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:10:58,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:10:58,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:10:58,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:10:58,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268a25c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58, skipping insertion in model container [2019-11-23 22:10:58,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:10:58,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:10:58,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:10:58,271 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:10:58,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:10:58,299 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:10:58,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58 WrapperNode [2019-11-23 22:10:58,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:10:58,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:10:58,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:10:58,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:10:58,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:10:58,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:10:58,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:10:58,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:10:58,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (1/1) ... [2019-11-23 22:10:58,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:10:58,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:10:58,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:10:58,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:10:58,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (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 [2019-11-23 22:10:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:10:58,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:10:58,667 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:10:58,668 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-23 22:10:58,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:10:58 BoogieIcfgContainer [2019-11-23 22:10:58,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:10:58,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:10:58,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:10:58,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:10:58,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:10:58" (1/3) ... [2019-11-23 22:10:58,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39be7f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:10:58, skipping insertion in model container [2019-11-23 22:10:58,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:58" (2/3) ... [2019-11-23 22:10:58,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39be7f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:10:58, skipping insertion in model container [2019-11-23 22:10:58,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:10:58" (3/3) ... [2019-11-23 22:10:58,677 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i [2019-11-23 22:10:58,687 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:10:58,694 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-23 22:10:58,706 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-23 22:10:58,734 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:10:58,734 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:10:58,734 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:10:58,734 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:10:58,735 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:10:58,735 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:10:58,735 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:10:58,735 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:10:58,755 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-23 22:10:58,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-23 22:10:58,763 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:10:58,765 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-23 22:10:58,766 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:10:58,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:10:58,774 INFO L82 PathProgramCache]: Analyzing trace with hash 29837770, now seen corresponding path program 1 times [2019-11-23 22:10:58,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:10:58,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788268112] [2019-11-23 22:10:58,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:10:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:10:58,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:10:58,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788268112] [2019-11-23 22:10:58,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:10:58,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 22:10:58,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14796519] [2019-11-23 22:10:58,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:10:58,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:10:58,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:10:58,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:10:58,989 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-11-23 22:10:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:10:59,086 INFO L93 Difference]: Finished difference Result 36 states and 49 transitions. [2019-11-23 22:10:59,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:10:59,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-23 22:10:59,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:10:59,099 INFO L225 Difference]: With dead ends: 36 [2019-11-23 22:10:59,099 INFO L226 Difference]: Without dead ends: 13 [2019-11-23 22:10:59,103 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:10:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-23 22:10:59,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2019-11-23 22:10:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-23 22:10:59,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-23 22:10:59,137 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 5 [2019-11-23 22:10:59,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:10:59,137 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-23 22:10:59,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:10:59,138 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-23 22:10:59,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 22:10:59,138 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:10:59,139 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:10:59,139 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:10:59,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:10:59,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1390518387, now seen corresponding path program 1 times [2019-11-23 22:10:59,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:10:59,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451696886] [2019-11-23 22:10:59,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:10:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:10:59,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:10:59,186 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451696886] [2019-11-23 22:10:59,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:10:59,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:10:59,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198839507] [2019-11-23 22:10:59,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:10:59,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:10:59,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:10:59,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:10:59,190 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 4 states. [2019-11-23 22:10:59,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:10:59,242 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-11-23 22:10:59,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:10:59,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-23 22:10:59,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:10:59,243 INFO L225 Difference]: With dead ends: 13 [2019-11-23 22:10:59,243 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:10:59,244 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:10:59,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:10:59,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:10:59,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:10:59,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:10:59,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-23 22:10:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:10:59,246 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:10:59,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:10:59,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:10:59,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:10:59,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:10:59,308 INFO L444 ceAbstractionStarter]: For program point L4-3(lines 4 6) no Hoare annotation was computed. [2019-11-23 22:10:59,308 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:10:59,309 INFO L440 ceAbstractionStarter]: At program point L4-5(lines 1 20) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~i~0) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~nlen~0)) [2019-11-23 22:10:59,309 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-23 22:10:59,309 INFO L447 ceAbstractionStarter]: At program point L19(lines 10 20) the Hoare annotation is: true [2019-11-23 22:10:59,309 INFO L444 ceAbstractionStarter]: For program point L13-2(lines 13 18) no Hoare annotation was computed. [2019-11-23 22:10:59,310 INFO L440 ceAbstractionStarter]: At program point L13-3(lines 13 18) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~i~0) [2019-11-23 22:10:59,310 INFO L444 ceAbstractionStarter]: For program point L13-4(lines 13 18) no Hoare annotation was computed. [2019-11-23 22:10:59,310 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-23 22:10:59,310 INFO L444 ceAbstractionStarter]: For program point L5-1(line 5) no Hoare annotation was computed. [2019-11-23 22:10:59,310 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:10:59,310 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:10:59,311 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-23 22:10:59,311 INFO L440 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: (and (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~nlen~0) (<= 0 ULTIMATE.start_main_~i~0)) [2019-11-23 22:10:59,311 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-23 22:10:59,312 INFO L440 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~i~0) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~nlen~0)) [2019-11-23 22:10:59,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:10:59 BoogieIcfgContainer [2019-11-23 22:10:59,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:10:59,331 INFO L168 Benchmark]: Toolchain (without parser) took 1293.15 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 102.2 MB in the beginning and 132.7 MB in the end (delta: -30.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:59,332 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 143.1 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-23 22:10:59,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.60 ms. Allocated memory is still 143.1 MB. Free memory was 102.0 MB in the beginning and 92.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:59,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.42 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 92.5 MB in the beginning and 181.6 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:59,335 INFO L168 Benchmark]: Boogie Preprocessor took 20.47 ms. Allocated memory is still 202.4 MB. Free memory was 181.6 MB in the beginning and 180.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:59,336 INFO L168 Benchmark]: RCFGBuilder took 232.56 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 169.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:59,337 INFO L168 Benchmark]: TraceAbstraction took 658.35 ms. Allocated memory is still 202.4 MB. Free memory was 168.3 MB in the beginning and 132.7 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:59,342 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 143.1 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 261.60 ms. Allocated memory is still 143.1 MB. Free memory was 102.0 MB in the beginning and 92.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 115.42 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 92.5 MB in the beginning and 181.6 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.47 ms. Allocated memory is still 202.4 MB. Free memory was 181.6 MB in the beginning and 180.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 232.56 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 169.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 658.35 ms. Allocated memory is still 202.4 MB. Free memory was 168.3 MB in the beginning and 132.7 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (!(0 == cond) && 0 <= i) && i < nlen - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= i - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: i < nlen && 0 <= i - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (!(0 == cond) && 0 <= i) && i < nlen - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 22 SDslu, 16 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 13 NumberOfFragments, 33 HoareAnnotationTreeSize, 5 FomulaSimplifications, 39 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...