/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-regression/test03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:50:10,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:50:10,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:50:10,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:50:10,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:50:10,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:50:10,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:50:10,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:50:10,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:50:10,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:50:10,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:50:10,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:50:10,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:50:10,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:50:10,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:50:10,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:50:10,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:50:10,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:50:10,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:50:10,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:50:10,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:50:10,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:50:10,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:50:10,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:50:10,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 03:50:10,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:50:10,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:50:10,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:50:10,704 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 [2019-11-07 03:50:10,739 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:50:10,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:50:10,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:50:10,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:50:10,741 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:50:10,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:50:10,744 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:50:10,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:50:10,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:50:10,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:50:10,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:50:10,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:50:10,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:50:10,745 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:50:10,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:50:10,746 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:50:10,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:50:10,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:50:10,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:50:10,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:50:10,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:50:10,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:50:10,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:50:10,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:50:10,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:50:10,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:50:10,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:50:10,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:50:10,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 03:50:11,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:50:11,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:50:11,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:50:11,115 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:50:11,116 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:50:11,116 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test03.c [2019-11-07 03:50:11,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73a460a0b/84cd21ca71b3463bafd57ade394b91aa/FLAGaa007adf3 [2019-11-07 03:50:11,611 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:50:11,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test03.c [2019-11-07 03:50:11,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73a460a0b/84cd21ca71b3463bafd57ade394b91aa/FLAGaa007adf3 [2019-11-07 03:50:12,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73a460a0b/84cd21ca71b3463bafd57ade394b91aa [2019-11-07 03:50:12,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:50:12,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:50:12,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:12,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:50:12,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:50:12,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:12" (1/1) ... [2019-11-07 03:50:12,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128aa138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12, skipping insertion in model container [2019-11-07 03:50:12,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:12" (1/1) ... [2019-11-07 03:50:12,049 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:50:12,070 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:50:12,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:12,302 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:50:12,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:12,351 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:50:12,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12 WrapperNode [2019-11-07 03:50:12,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:12,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:50:12,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:50:12,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:50:12,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12" (1/1) ... [2019-11-07 03:50:12,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12" (1/1) ... [2019-11-07 03:50:12,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12" (1/1) ... [2019-11-07 03:50:12,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12" (1/1) ... [2019-11-07 03:50:12,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12" (1/1) ... [2019-11-07 03:50:12,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12" (1/1) ... [2019-11-07 03:50:12,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12" (1/1) ... [2019-11-07 03:50:12,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:50:12,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:50:12,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:50:12,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:50:12,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12" (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 [2019-11-07 03:50:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:50:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:50:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-07 03:50:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:50:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:50:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-07 03:50:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:50:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:50:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:50:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:50:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:50:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:50:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:50:12,890 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:50:12,890 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 03:50:12,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:12 BoogieIcfgContainer [2019-11-07 03:50:12,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:50:12,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:50:12,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:50:12,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:50:12,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:50:12" (1/3) ... [2019-11-07 03:50:12,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bda6bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:12, skipping insertion in model container [2019-11-07 03:50:12,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:12" (2/3) ... [2019-11-07 03:50:12,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bda6bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:12, skipping insertion in model container [2019-11-07 03:50:12,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:12" (3/3) ... [2019-11-07 03:50:12,899 INFO L109 eAbstractionObserver]: Analyzing ICFG test03.c [2019-11-07 03:50:12,911 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:50:12,921 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:50:12,937 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:50:12,984 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:50:12,984 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:50:12,984 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:50:12,984 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:50:12,985 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:50:12,989 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:50:12,989 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:50:12,989 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:50:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-07 03:50:13,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-07 03:50:13,041 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:13,043 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:50:13,047 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:13,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:13,053 INFO L82 PathProgramCache]: Analyzing trace with hash 513126455, now seen corresponding path program 1 times [2019-11-07 03:50:13,060 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:13,060 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803101594] [2019-11-07 03:50:13,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:13,312 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803101594] [2019-11-07 03:50:13,313 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:13,313 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 03:50:13,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994647641] [2019-11-07 03:50:13,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 03:50:13,320 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:13,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 03:50:13,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 03:50:13,337 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2019-11-07 03:50:13,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:13,423 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-11-07 03:50:13,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 03:50:13,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-07 03:50:13,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:13,434 INFO L225 Difference]: With dead ends: 20 [2019-11-07 03:50:13,435 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 03:50:13,440 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-07 03:50:13,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 03:50:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 03:50:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 03:50:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 03:50:13,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-07 03:50:13,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:13,464 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 03:50:13,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 03:50:13,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 03:50:13,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 03:50:13,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 03:50:13,486 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 03:50:13,486 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 03:50:13,487 INFO L443 ceAbstractionStarter]: For program point fEXIT(lines 4 6) no Hoare annotation was computed. [2019-11-07 03:50:13,487 INFO L446 ceAbstractionStarter]: At program point fENTRY(lines 4 6) the Hoare annotation is: true [2019-11-07 03:50:13,487 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 03:50:13,487 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 03:50:13,487 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 03:50:13,488 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 03:50:13,488 INFO L443 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-11-07 03:50:13,488 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2019-11-07 03:50:13,488 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2019-11-07 03:50:13,488 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2019-11-07 03:50:13,489 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2019-11-07 03:50:13,489 INFO L439 ceAbstractionStarter]: At program point L21(lines 10 28) the Hoare annotation is: false [2019-11-07 03:50:13,489 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 22) no Hoare annotation was computed. [2019-11-07 03:50:13,489 INFO L439 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2019-11-07 03:50:13,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:50:13 BoogieIcfgContainer [2019-11-07 03:50:13,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 03:50:13,500 INFO L168 Benchmark]: Toolchain (without parser) took 1466.35 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 105.3 MB in the beginning and 141.6 MB in the end (delta: -36.2 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:13,501 INFO L168 Benchmark]: CDTParser took 1.20 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 03:50:13,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.86 ms. Allocated memory is still 146.8 MB. Free memory was 105.1 MB in the beginning and 95.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:13,503 INFO L168 Benchmark]: Boogie Preprocessor took 182.44 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 95.1 MB in the beginning and 185.9 MB in the end (delta: -90.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:13,504 INFO L168 Benchmark]: RCFGBuilder took 356.35 ms. Allocated memory is still 207.6 MB. Free memory was 185.9 MB in the beginning and 171.8 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:13,505 INFO L168 Benchmark]: TraceAbstraction took 604.03 ms. Allocated memory is still 207.6 MB. Free memory was 171.1 MB in the beginning and 141.6 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:13,509 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 318.86 ms. Allocated memory is still 146.8 MB. Free memory was 105.1 MB in the beginning and 95.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 182.44 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 95.1 MB in the beginning and 185.9 MB in the end (delta: -90.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 356.35 ms. Allocated memory is still 207.6 MB. Free memory was 185.9 MB in the beginning and 171.8 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 604.03 ms. Allocated memory is still 207.6 MB. Free memory was 171.1 MB in the beginning and 141.6 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: 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: 10]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 1 SDslu, 36 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 10 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 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...