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/test01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:47:59,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:47:59,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:47:59,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:47:59,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:47:59,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:47:59,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:47:59,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:47:59,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:47:59,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:47:59,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:47:59,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:47:59,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:47:59,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:47:59,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:47:59,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:47:59,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:47:59,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:47:59,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:47:59,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:47:59,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:47:59,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:47:59,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:47:59,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:47:59,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 12:47:59,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 12:47:59,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 12:47:59,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 12:47:59,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 12:47:59,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 12:47:59,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 12:47:59,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 12:47:59,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 12:47:59,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 12:47:59,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 12:47:59,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 12:47:59,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 12:47:59,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 12:47:59,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:47:59,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:47:59,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:47:59,806 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 12:47:59,836 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:47:59,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:47:59,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:47:59,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:47:59,840 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:47:59,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:47:59,841 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:47:59,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:47:59,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:47:59,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:47:59,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:47:59,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:47:59,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:47:59,844 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:47:59,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:47:59,844 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:47:59,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:47:59,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:47:59,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:47:59,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:47:59,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:47:59,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:47:59,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:47:59,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:47:59,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:47:59,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:47:59,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:47:59,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:47:59,847 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 12:48:00,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:48:00,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:48:00,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:48:00,168 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:48:00,169 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:48:00,170 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test01.c [2019-10-07 12:48:00,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01696f416/11c543ad587342c28f4dfcfe11afcad9/FLAGb3f2003a3 [2019-10-07 12:48:00,786 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:48:00,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test01.c [2019-10-07 12:48:00,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01696f416/11c543ad587342c28f4dfcfe11afcad9/FLAGb3f2003a3 [2019-10-07 12:48:01,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01696f416/11c543ad587342c28f4dfcfe11afcad9 [2019-10-07 12:48:01,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:48:01,116 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:48:01,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:01,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:48:01,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:48:01,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:01" (1/1) ... [2019-10-07 12:48:01,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@351bcc33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01, skipping insertion in model container [2019-10-07 12:48:01,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:01" (1/1) ... [2019-10-07 12:48:01,140 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:48:01,160 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:48:01,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:01,352 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:48:01,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:01,385 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:48:01,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01 WrapperNode [2019-10-07 12:48:01,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:01,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:48:01,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:48:01,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:48:01,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01" (1/1) ... [2019-10-07 12:48:01,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01" (1/1) ... [2019-10-07 12:48:01,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01" (1/1) ... [2019-10-07 12:48:01,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01" (1/1) ... [2019-10-07 12:48:01,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01" (1/1) ... [2019-10-07 12:48:01,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01" (1/1) ... [2019-10-07 12:48:01,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01" (1/1) ... [2019-10-07 12:48:01,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:48:01,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:48:01,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:48:01,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:48:01,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01" (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 12:48:01,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:48:01,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:48:01,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:48:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:48:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:48:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:48:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:48:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:48:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:48:01,794 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:48:01,795 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:48:01,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:01 BoogieIcfgContainer [2019-10-07 12:48:01,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:48:01,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:48:01,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:48:01,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:48:01,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:48:01" (1/3) ... [2019-10-07 12:48:01,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2caf6e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:01, skipping insertion in model container [2019-10-07 12:48:01,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:01" (2/3) ... [2019-10-07 12:48:01,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2caf6e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:01, skipping insertion in model container [2019-10-07 12:48:01,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:01" (3/3) ... [2019-10-07 12:48:01,807 INFO L109 eAbstractionObserver]: Analyzing ICFG test01.c [2019-10-07 12:48:01,818 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:48:01,827 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:48:01,841 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:48:01,870 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:48:01,870 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:48:01,871 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:48:01,871 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:48:01,874 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:48:01,875 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:48:01,875 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:48:01,876 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:48:01,899 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-10-07 12:48:01,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-07 12:48:01,908 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:48:01,910 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:48:01,912 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:48:01,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:48:01,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1812619234, now seen corresponding path program 1 times [2019-10-07 12:48:01,925 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:48:01,926 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:01,926 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:01,927 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:01,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:48:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:48:02,102 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 12:48:02,103 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:02,103 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:48:02,104 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:48:02,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:48:02,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:48:02,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:48:02,129 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2019-10-07 12:48:02,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:48:02,160 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-10-07 12:48:02,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:48:02,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-10-07 12:48:02,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:48:02,172 INFO L225 Difference]: With dead ends: 16 [2019-10-07 12:48:02,173 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 12:48:02,177 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:48:02,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 12:48:02,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 12:48:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 12:48:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 12:48:02,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-10-07 12:48:02,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:48:02,215 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 12:48:02,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:48:02,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 12:48:02,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 12:48:02,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 12:48:02,296 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:02,296 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:02,297 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:02,297 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 12:48:02,297 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:02,298 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 12:48:02,298 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 17) the Hoare annotation is: true [2019-10-07 12:48:02,298 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 17) no Hoare annotation was computed. [2019-10-07 12:48:02,299 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2019-10-07 12:48:02,299 INFO L439 ceAbstractionStarter]: At program point L10(lines 4 17) the Hoare annotation is: false [2019-10-07 12:48:02,299 INFO L443 ceAbstractionStarter]: For program point L9(lines 9 11) no Hoare annotation was computed. [2019-10-07 12:48:02,299 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 17) no Hoare annotation was computed. [2019-10-07 12:48:02,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:48:02 BoogieIcfgContainer [2019-10-07 12:48:02,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 12:48:02,317 INFO L168 Benchmark]: Toolchain (without parser) took 1198.48 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 103.1 MB in the beginning and 150.3 MB in the end (delta: -47.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:02,319 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-07 12:48:02,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.87 ms. Allocated memory is still 145.8 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:02,323 INFO L168 Benchmark]: Boogie Preprocessor took 125.51 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 93.2 MB in the beginning and 183.9 MB in the end (delta: -90.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:02,325 INFO L168 Benchmark]: RCFGBuilder took 284.47 ms. Allocated memory is still 204.5 MB. Free memory was 183.9 MB in the beginning and 171.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:02,327 INFO L168 Benchmark]: TraceAbstraction took 513.91 ms. Allocated memory is still 204.5 MB. Free memory was 171.8 MB in the beginning and 150.3 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:02,335 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 268.87 ms. Allocated memory is still 145.8 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.51 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 93.2 MB in the beginning and 183.9 MB in the end (delta: -90.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 284.47 ms. Allocated memory is still 204.5 MB. Free memory was 183.9 MB in the beginning and 171.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 513.91 ms. Allocated memory is still 204.5 MB. Free memory was 171.8 MB in the beginning and 150.3 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 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...