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/test17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:48:29,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:48:29,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:48:30,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:48:30,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:48:30,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:48:30,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:48:30,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:48:30,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:48:30,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:48:30,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:48:30,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:48:30,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:48:30,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:48:30,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:48:30,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:48:30,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:48:30,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:48:30,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:48:30,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:48:30,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:48:30,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:48:30,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:48:30,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:48:30,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 12:48:30,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:48:30,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:48:30,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:48:30,050 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 [2019-10-07 12:48:30,071 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:48:30,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:48:30,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:48:30,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:48:30,074 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:48:30,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:48:30,074 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:48:30,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:48:30,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:48:30,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:48:30,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:48:30,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:48:30,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:48:30,077 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:48:30,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:48:30,077 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:48:30,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:48:30,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:48:30,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:48:30,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:48:30,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:48:30,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:48:30,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:48:30,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:48:30,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:48:30,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:48:30,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:48:30,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:48:30,080 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 [2019-10-07 12:48:30,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:48:30,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:48:30,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:48:30,440 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:48:30,440 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:48:30,441 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test17.c [2019-10-07 12:48:30,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51796b9c6/8ee3a7007e9d45c9bd1ac82eb350a83d/FLAG7d2432e02 [2019-10-07 12:48:30,913 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:48:30,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test17.c [2019-10-07 12:48:30,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51796b9c6/8ee3a7007e9d45c9bd1ac82eb350a83d/FLAG7d2432e02 [2019-10-07 12:48:31,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51796b9c6/8ee3a7007e9d45c9bd1ac82eb350a83d [2019-10-07 12:48:31,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:48:31,347 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:48:31,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:31,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:48:31,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:48:31,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:31" (1/1) ... [2019-10-07 12:48:31,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30fbe232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31, skipping insertion in model container [2019-10-07 12:48:31,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:31" (1/1) ... [2019-10-07 12:48:31,363 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:48:31,380 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:48:31,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:31,597 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:48:31,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:31,637 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:48:31,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31 WrapperNode [2019-10-07 12:48:31,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:31,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:48:31,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:48:31,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:48:31,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31" (1/1) ... [2019-10-07 12:48:31,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31" (1/1) ... [2019-10-07 12:48:31,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31" (1/1) ... [2019-10-07 12:48:31,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31" (1/1) ... [2019-10-07 12:48:31,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31" (1/1) ... [2019-10-07 12:48:31,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31" (1/1) ... [2019-10-07 12:48:31,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31" (1/1) ... [2019-10-07 12:48:31,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:48:31,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:48:31,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:48:31,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:48:31,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31" (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 [2019-10-07 12:48:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:48:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:48:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2019-10-07 12:48:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:48:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:48:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2019-10-07 12:48:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:48:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:48:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:48:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 12:48:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:48:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 12:48:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 12:48:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:48:32,071 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:48:32,071 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:48:32,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:32 BoogieIcfgContainer [2019-10-07 12:48:32,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:48:32,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:48:32,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:48:32,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:48:32,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:48:31" (1/3) ... [2019-10-07 12:48:32,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f896bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:32, skipping insertion in model container [2019-10-07 12:48:32,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:31" (2/3) ... [2019-10-07 12:48:32,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f896bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:32, skipping insertion in model container [2019-10-07 12:48:32,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:32" (3/3) ... [2019-10-07 12:48:32,093 INFO L109 eAbstractionObserver]: Analyzing ICFG test17.c [2019-10-07 12:48:32,104 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:48:32,112 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:48:32,122 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:48:32,144 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:48:32,144 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:48:32,144 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:48:32,145 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:48:32,145 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:48:32,145 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:48:32,145 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:48:32,145 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:48:32,160 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-10-07 12:48:32,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-07 12:48:32,165 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:48:32,166 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:48:32,169 INFO L410 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:48:32,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:48:32,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1521762966, now seen corresponding path program 1 times [2019-10-07 12:48:32,184 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:48:32,184 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:32,184 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:32,184 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:32,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:48:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:48:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 12:48:32,376 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:32,377 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:48:32,377 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 12:48:32,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 12:48:32,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 12:48:32,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 12:48:32,402 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-10-07 12:48:32,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:48:32,501 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-10-07 12:48:32,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 12:48:32,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-10-07 12:48:32,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:48:32,513 INFO L225 Difference]: With dead ends: 21 [2019-10-07 12:48:32,513 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 12:48:32,519 INFO L606 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 [2019-10-07 12:48:32,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 12:48:32,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 12:48:32,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 12:48:32,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 12:48:32,549 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-10-07 12:48:32,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:48:32,550 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 12:48:32,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 12:48:32,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 12:48:32,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 12:48:32,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 12:48:32,591 INFO L443 ceAbstractionStarter]: For program point equalEXIT(lines 4 12) no Hoare annotation was computed. [2019-10-07 12:48:32,591 INFO L446 ceAbstractionStarter]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true [2019-10-07 12:48:32,592 INFO L443 ceAbstractionStarter]: For program point equalFINAL(lines 4 12) no Hoare annotation was computed. [2019-10-07 12:48:32,592 INFO L443 ceAbstractionStarter]: For program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-10-07 12:48:32,592 INFO L439 ceAbstractionStarter]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= |equal_#in~a.base| |equal_#in~b.base|)) (not (= |equal_#in~a.offset| |equal_#in~b.offset|))) [2019-10-07 12:48:32,593 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-07 12:48:32,593 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:32,593 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:32,594 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:32,595 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 12:48:32,595 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:32,595 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 12:48:32,595 INFO L443 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-10-07 12:48:32,596 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 16 19) the Hoare annotation is: true [2019-10-07 12:48:32,596 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 16 19) no Hoare annotation was computed. [2019-10-07 12:48:32,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:48:32 BoogieIcfgContainer [2019-10-07 12:48:32,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 12:48:32,620 INFO L168 Benchmark]: Toolchain (without parser) took 1270.63 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 102.0 MB in the beginning and 139.8 MB in the end (delta: -37.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:32,621 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 12:48:32,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.85 ms. Allocated memory is still 144.2 MB. Free memory was 101.8 MB in the beginning and 92.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:32,626 INFO L168 Benchmark]: Boogie Preprocessor took 119.42 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 92.3 MB in the beginning and 179.8 MB in the end (delta: -87.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:32,627 INFO L168 Benchmark]: RCFGBuilder took 314.50 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 166.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:32,629 INFO L168 Benchmark]: TraceAbstraction took 534.72 ms. Allocated memory is still 201.3 MB. Free memory was 166.0 MB in the beginning and 139.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:32,639 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 290.85 ms. Allocated memory is still 144.2 MB. Free memory was 101.8 MB in the beginning and 92.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.42 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 92.3 MB in the beginning and 179.8 MB in the end (delta: -87.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 314.50 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 166.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 534.72 ms. Allocated memory is still 201.3 MB. Free memory was 166.0 MB in the beginning and 139.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 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 == b) || !(a == b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 5 SDslu, 15 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 14 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 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...