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/test18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:48:32,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:48:32,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:48:32,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:48:32,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:48:32,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:48:32,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:48:32,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:48:32,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:48:32,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:48:32,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:48:32,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:48:32,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:48:32,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:48:32,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:48:32,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:48:32,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:48:32,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:48:32,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:48:32,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:48:32,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:48:32,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:48:32,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:48:32,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:48:32,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 12:48:32,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:48:32,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:48:32,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:48:32,341 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 12:48:32,367 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:48:32,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:48:32,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:48:32,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:48:32,372 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:48:32,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:48:32,372 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:48:32,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:48:32,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:48:32,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:48:32,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:48:32,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:48:32,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:48:32,377 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:48:32,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:48:32,377 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:48:32,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:48:32,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:48:32,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:48:32,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:48:32,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:48:32,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:48:32,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:48:32,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:48:32,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:48:32,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:48:32,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:48:32,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:48:32,380 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 12:48:32,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:48:32,813 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:48:32,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:48:32,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:48:32,822 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:48:32,823 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test18.c [2019-10-07 12:48:32,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/561c33e1b/e8022b96ea934a71bdda38d098167bef/FLAG974aa4d91 [2019-10-07 12:48:33,447 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:48:33,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test18.c [2019-10-07 12:48:33,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/561c33e1b/e8022b96ea934a71bdda38d098167bef/FLAG974aa4d91 [2019-10-07 12:48:33,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/561c33e1b/e8022b96ea934a71bdda38d098167bef [2019-10-07 12:48:33,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:48:33,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:48:33,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:33,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:48:33,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:48:33,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:33" (1/1) ... [2019-10-07 12:48:33,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@596d6cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:33, skipping insertion in model container [2019-10-07 12:48:33,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:33" (1/1) ... [2019-10-07 12:48:33,777 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:48:33,794 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:48:34,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:34,084 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:48:34,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:34,133 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:48:34,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:34 WrapperNode [2019-10-07 12:48:34,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:34,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:48:34,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:48:34,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:48:34,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:34" (1/1) ... [2019-10-07 12:48:34,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:34" (1/1) ... [2019-10-07 12:48:34,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:34" (1/1) ... [2019-10-07 12:48:34,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:34" (1/1) ... [2019-10-07 12:48:34,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:34" (1/1) ... [2019-10-07 12:48:34,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:34" (1/1) ... [2019-10-07 12:48:34,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:34" (1/1) ... [2019-10-07 12:48:34,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:48:34,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:48:34,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:48:34,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:48:34,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:34" (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 12:48:34,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:48:34,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:48:34,360 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-10-07 12:48:34,361 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-10-07 12:48:34,361 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:48:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:48:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-10-07 12:48:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 12:48:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 12:48:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-10-07 12:48:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:48:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 12:48:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:48:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:48:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 12:48:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:48:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:48:34,707 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:48:34,708 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:48:34,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:34 BoogieIcfgContainer [2019-10-07 12:48:34,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:48:34,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:48:34,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:48:34,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:48:34,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:48:33" (1/3) ... [2019-10-07 12:48:34,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8b6edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:34, skipping insertion in model container [2019-10-07 12:48:34,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:34" (2/3) ... [2019-10-07 12:48:34,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8b6edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:34, skipping insertion in model container [2019-10-07 12:48:34,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:34" (3/3) ... [2019-10-07 12:48:34,724 INFO L109 eAbstractionObserver]: Analyzing ICFG test18.c [2019-10-07 12:48:34,738 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:48:34,747 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:48:34,762 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:48:34,792 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:48:34,792 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:48:34,793 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:48:34,793 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:48:34,793 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:48:34,793 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:48:34,793 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:48:34,793 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:48:34,815 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-07 12:48:34,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-07 12:48:34,823 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:48:34,825 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:48:34,827 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:48:34,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:48:34,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1649959282, now seen corresponding path program 1 times [2019-10-07 12:48:34,842 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:48:34,843 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:34,843 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:34,843 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:34,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:48:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:48:35,349 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 12:48:35,350 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:35,351 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:48:35,351 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 12:48:35,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 12:48:35,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 12:48:35,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 12:48:35,378 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 9 states. [2019-10-07 12:48:35,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:48:35,620 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-10-07 12:48:35,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 12:48:35,622 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-10-07 12:48:35,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:48:35,632 INFO L225 Difference]: With dead ends: 24 [2019-10-07 12:48:35,632 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 12:48:35,637 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-07 12:48:35,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 12:48:35,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 12:48:35,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 12:48:35,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 12:48:35,674 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-10-07 12:48:35,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:48:35,675 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 12:48:35,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 12:48:35,675 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 12:48:35,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 12:48:35,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 12:48:35,788 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:35,788 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:35,789 INFO L439 ceAbstractionStarter]: At program point L9(line 9) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|) (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|)) [2019-10-07 12:48:35,789 INFO L443 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-10-07 12:48:35,789 INFO L443 ceAbstractionStarter]: For program point fEXIT(lines 8 11) no Hoare annotation was computed. [2019-10-07 12:48:35,789 INFO L439 ceAbstractionStarter]: At program point fENTRY(lines 8 11) the Hoare annotation is: (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 12:48:35,789 INFO L443 ceAbstractionStarter]: For program point gEXIT(lines 4 6) no Hoare annotation was computed. [2019-10-07 12:48:35,790 INFO L439 ceAbstractionStarter]: At program point gENTRY(lines 4 6) the Hoare annotation is: (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 12:48:35,790 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:35,790 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 12:48:35,790 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:35,790 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 12:48:35,790 INFO L439 ceAbstractionStarter]: At program point L17(lines 13 24) the Hoare annotation is: false [2019-10-07 12:48:35,791 INFO L443 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2019-10-07 12:48:35,791 INFO L439 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 12:48:35,791 INFO L443 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-10-07 12:48:35,791 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 13 24) the Hoare annotation is: (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 12:48:35,791 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 13 24) no Hoare annotation was computed. [2019-10-07 12:48:35,792 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 13 24) no Hoare annotation was computed. [2019-10-07 12:48:35,792 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2019-10-07 12:48:35,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:48:35 BoogieIcfgContainer [2019-10-07 12:48:35,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 12:48:35,810 INFO L168 Benchmark]: Toolchain (without parser) took 2049.79 ms. Allocated memory was 135.8 MB in the beginning and 198.7 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 110.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:35,813 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 135.8 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 12:48:35,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.82 ms. Allocated memory is still 135.8 MB. Free memory was 99.7 MB in the beginning and 90.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:35,819 INFO L168 Benchmark]: Boogie Preprocessor took 150.51 ms. Allocated memory was 135.8 MB in the beginning and 198.7 MB in the end (delta: 62.9 MB). Free memory was 90.0 MB in the beginning and 176.9 MB in the end (delta: -86.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:35,820 INFO L168 Benchmark]: RCFGBuilder took 422.90 ms. Allocated memory is still 198.7 MB. Free memory was 176.9 MB in the beginning and 159.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:35,822 INFO L168 Benchmark]: TraceAbstraction took 1094.40 ms. Allocated memory is still 198.7 MB. Free memory was 159.2 MB in the beginning and 110.2 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:35,834 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 135.8 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 376.82 ms. Allocated memory is still 135.8 MB. Free memory was 99.7 MB in the beginning and 90.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.51 ms. Allocated memory was 135.8 MB in the beginning and 198.7 MB in the end (delta: 62.9 MB). Free memory was 90.0 MB in the beginning and 176.9 MB in the end (delta: -86.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.90 ms. Allocated memory is still 198.7 MB. Free memory was 176.9 MB in the beginning and 159.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1094.40 ms. Allocated memory is still 198.7 MB. Free memory was 159.2 MB in the beginning and 110.2 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 13]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 10 SDtfs, 3 SDslu, 44 SDs, 0 SdLazy, 69 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 47 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 1176 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...