/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-regression/test09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:50:13,983 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-07 03:50:14,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:50:14,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:50:14,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:50:14,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:50:14,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:50:14,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:50:14,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:50:14,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:50:14,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:50:14,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:50:14,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:50:14,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:50:14,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 03:50:14,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:50:14,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:50:14,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:50:14,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 03:50:14,088 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:50:14,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:50:14,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:50:14,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:50:14,090 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:50:14,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:50:14,091 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:50:14,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:50:14,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:50:14,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:50:14,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:50:14,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:50:14,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:50:14,092 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:50:14,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:50:14,093 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:50:14,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:50:14,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:50:14,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:50:14,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:50:14,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:50:14,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:50:14,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:50:14,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:50:14,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:50:14,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:50:14,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:50:14,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:50:14,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 03:50:14,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:50:14,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:50:14,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:50:14,396 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:50:14,396 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:50:14,397 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test09.c [2019-11-07 03:50:14,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763fd3ddf/6e67d036510c4b5bb191aabf755a8af7/FLAG0ef246725 [2019-11-07 03:50:14,958 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:50:14,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test09.c [2019-11-07 03:50:14,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763fd3ddf/6e67d036510c4b5bb191aabf755a8af7/FLAG0ef246725 [2019-11-07 03:50:15,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763fd3ddf/6e67d036510c4b5bb191aabf755a8af7 [2019-11-07 03:50:15,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:50:15,327 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:50:15,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:15,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:50:15,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:50:15,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:15" (1/1) ... [2019-11-07 03:50:15,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484b951c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15, skipping insertion in model container [2019-11-07 03:50:15,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:15" (1/1) ... [2019-11-07 03:50:15,345 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:50:15,363 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:50:15,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:15,628 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:50:15,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:15,669 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:50:15,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15 WrapperNode [2019-11-07 03:50:15,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:15,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:50:15,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:50:15,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:50:15,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15" (1/1) ... [2019-11-07 03:50:15,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15" (1/1) ... [2019-11-07 03:50:15,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15" (1/1) ... [2019-11-07 03:50:15,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15" (1/1) ... [2019-11-07 03:50:15,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15" (1/1) ... [2019-11-07 03:50:15,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15" (1/1) ... [2019-11-07 03:50:15,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15" (1/1) ... [2019-11-07 03:50:15,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:50:15,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:50:15,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:50:15,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:50:15,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:50:15,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:50:15,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:50:15,862 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-07 03:50:15,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:50:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:50:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-07 03:50:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:50:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:50:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:50:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:50:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:50:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 03:50:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:50:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:50:16,249 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:50:16,249 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 03:50:16,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:16 BoogieIcfgContainer [2019-11-07 03:50:16,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:50:16,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:50:16,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:50:16,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:50:16,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:50:15" (1/3) ... [2019-11-07 03:50:16,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ca1a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:16, skipping insertion in model container [2019-11-07 03:50:16,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:15" (2/3) ... [2019-11-07 03:50:16,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ca1a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:16, skipping insertion in model container [2019-11-07 03:50:16,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:16" (3/3) ... [2019-11-07 03:50:16,259 INFO L109 eAbstractionObserver]: Analyzing ICFG test09.c [2019-11-07 03:50:16,270 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:50:16,280 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:50:16,292 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:50:16,318 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:50:16,318 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:50:16,319 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:50:16,319 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:50:16,319 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:50:16,319 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:50:16,319 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:50:16,320 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:50:16,338 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-07 03:50:16,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-07 03:50:16,344 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:16,345 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:50:16,348 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:16,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:16,354 INFO L82 PathProgramCache]: Analyzing trace with hash 245853373, now seen corresponding path program 1 times [2019-11-07 03:50:16,364 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:16,365 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974900567] [2019-11-07 03:50:16,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:16,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:16,824 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974900567] [2019-11-07 03:50:16,825 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:16,826 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 03:50:16,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971511580] [2019-11-07 03:50:16,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 03:50:16,832 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:16,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 03:50:16,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-07 03:50:16,850 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 8 states. [2019-11-07 03:50:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:17,073 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-11-07 03:50:17,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 03:50:17,076 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-07 03:50:17,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:17,085 INFO L225 Difference]: With dead ends: 20 [2019-11-07 03:50:17,085 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 03:50:17,092 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-11-07 03:50:17,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 03:50:17,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 03:50:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 03:50:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 03:50:17,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-07 03:50:17,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:17,125 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 03:50:17,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 03:50:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 03:50:17,126 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 03:50:17,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 03:50:17,339 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) [2019-11-07 03:50:17,340 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 03:50:17,340 INFO L443 ceAbstractionStarter]: For program point fEXIT(lines 7 15) no Hoare annotation was computed. [2019-11-07 03:50:17,340 INFO L439 ceAbstractionStarter]: At program point fENTRY(lines 7 15) the Hoare annotation is: (or (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |~#a~0.base| ~p1~0.base)) (= |~#a~0.base| |~#b~0.base|) (not (= 1 (select (select |#memory_int| ~p2~0.base) ~p2~0.offset))) (not (= |~#a~0.offset| |old(~p1~0.offset)|)) (not (= |old(~p1~0.base)| |~#a~0.base|))) [2019-11-07 03:50:17,340 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 03:50:17,341 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= ~p2~0.offset ~p1~0.offset) (= ~p2~0.base ~p1~0.base)) [2019-11-07 03:50:17,341 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 03:50:17,341 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 03:50:17,341 INFO L439 ceAbstractionStarter]: At program point L32(lines 17 39) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= |old(~p2~0.offset)| |old(~p1~0.offset)|)) (not (= |old(~p1~0.base)| |old(~p2~0.base)|))) [2019-11-07 03:50:17,341 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 33) no Hoare annotation was computed. [2019-11-07 03:50:17,342 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 17 39) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= |old(~p2~0.offset)| |old(~p1~0.offset)|)) (not (= |old(~p1~0.base)| |old(~p2~0.base)|)) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= ~p2~0.offset ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (= ~p2~0.base ~p1~0.base))) [2019-11-07 03:50:17,342 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 17 39) no Hoare annotation was computed. [2019-11-07 03:50:17,343 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (or (and (= 1 (select (select |#memory_int| ~p2~0.base) ~p2~0.offset)) (= ~p1~0.offset |~#a~0.offset|) (= |~#a~0.base| ~p1~0.base)) (= |~#a~0.base| |~#b~0.base|) (not (= |old(~p2~0.offset)| |old(~p1~0.offset)|)) (not (= |old(~p1~0.base)| |old(~p2~0.base)|))) [2019-11-07 03:50:17,343 INFO L443 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-11-07 03:50:17,343 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 17 39) no Hoare annotation was computed. [2019-11-07 03:50:17,344 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 37) no Hoare annotation was computed. [2019-11-07 03:50:17,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:50:17 BoogieIcfgContainer [2019-11-07 03:50:17,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 03:50:17,368 INFO L168 Benchmark]: Toolchain (without parser) took 2038.88 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 102.0 MB in the beginning and 91.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:17,369 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 03:50:17,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.48 ms. Allocated memory is still 137.4 MB. Free memory was 101.8 MB in the beginning and 92.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:17,373 INFO L168 Benchmark]: Boogie Preprocessor took 132.14 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 92.0 MB in the beginning and 179.0 MB in the end (delta: -87.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:17,373 INFO L168 Benchmark]: RCFGBuilder took 447.85 ms. Allocated memory is still 200.8 MB. Free memory was 179.0 MB in the beginning and 161.4 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:17,374 INFO L168 Benchmark]: TraceAbstraction took 1112.91 ms. Allocated memory is still 200.8 MB. Free memory was 160.7 MB in the beginning and 91.4 MB in the end (delta: 69.3 MB). Peak memory consumption was 69.3 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:17,379 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 341.48 ms. Allocated memory is still 137.4 MB. Free memory was 101.8 MB in the beginning and 92.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.14 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 92.0 MB in the beginning and 179.0 MB in the end (delta: -87.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.85 ms. Allocated memory is still 200.8 MB. Free memory was 179.0 MB in the beginning and 161.4 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1112.91 ms. Allocated memory is still 200.8 MB. Free memory was 160.7 MB in the beginning and 91.4 MB in the end (delta: 69.3 MB). Peak memory consumption was 69.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 37]: 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: 17]: Loop Invariant Derived loop invariant: (a == b || !(\old(p2) == \old(p1))) || !(\old(p1) == \old(p2)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 8 SDtfs, 9 SDslu, 14 SDs, 0 SdLazy, 28 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 109 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 750 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...