/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/test13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:50:17,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:50:17,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:50:17,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:50:17,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:50:17,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:50:17,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:50:17,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:50:18,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:50:18,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:50:18,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:50:18,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:50:18,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:50:18,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:50:18,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:50:18,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:50:18,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:50:18,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:50:18,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:50:18,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:50:18,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:50:18,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:50:18,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:50:18,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:50:18,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 03:50:18,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:50:18,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:50:18,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:50:18,050 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 03:50:18,071 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:50:18,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:50:18,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:50:18,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:50:18,074 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:50:18,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:50:18,074 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:50:18,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:50:18,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:50:18,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:50:18,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:50:18,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:50:18,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:50:18,077 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:50:18,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:50:18,077 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:50:18,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:50:18,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:50:18,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:50:18,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:50:18,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:50:18,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:50:18,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:50:18,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:50:18,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:50:18,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:50:18,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:50:18,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:50:18,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 03:50:18,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:50:18,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:50:18,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:50:18,415 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:50:18,416 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:50:18,417 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test13.c [2019-11-07 03:50:18,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf680bc9/bef866657ad44badb9bf40d3569e0079/FLAG3ae85daa3 [2019-11-07 03:50:18,902 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:50:18,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test13.c [2019-11-07 03:50:18,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf680bc9/bef866657ad44badb9bf40d3569e0079/FLAG3ae85daa3 [2019-11-07 03:50:19,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf680bc9/bef866657ad44badb9bf40d3569e0079 [2019-11-07 03:50:19,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:50:19,343 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:50:19,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:19,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:50:19,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:50:19,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:19" (1/1) ... [2019-11-07 03:50:19,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f992157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19, skipping insertion in model container [2019-11-07 03:50:19,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:19" (1/1) ... [2019-11-07 03:50:19,359 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:50:19,375 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:50:19,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:19,593 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:50:19,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:19,641 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:50:19,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19 WrapperNode [2019-11-07 03:50:19,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:19,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:50:19,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:50:19,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:50:19,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19" (1/1) ... [2019-11-07 03:50:19,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19" (1/1) ... [2019-11-07 03:50:19,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19" (1/1) ... [2019-11-07 03:50:19,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19" (1/1) ... [2019-11-07 03:50:19,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19" (1/1) ... [2019-11-07 03:50:19,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19" (1/1) ... [2019-11-07 03:50:19,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19" (1/1) ... [2019-11-07 03:50:19,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:50:19,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:50:19,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:50:19,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:50:19,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19" (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 03:50:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:50:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:50:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-11-07 03:50:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:50:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:50:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-11-07 03:50:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:50:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:50:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:50:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 03:50:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:50:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:50:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:50:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:50:20,102 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:50:20,103 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 03:50:20,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:20 BoogieIcfgContainer [2019-11-07 03:50:20,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:50:20,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:50:20,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:50:20,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:50:20,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:50:19" (1/3) ... [2019-11-07 03:50:20,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a0a0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:20, skipping insertion in model container [2019-11-07 03:50:20,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:19" (2/3) ... [2019-11-07 03:50:20,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a0a0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:20, skipping insertion in model container [2019-11-07 03:50:20,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:20" (3/3) ... [2019-11-07 03:50:20,129 INFO L109 eAbstractionObserver]: Analyzing ICFG test13.c [2019-11-07 03:50:20,140 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:50:20,152 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:50:20,177 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:50:20,206 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:50:20,206 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:50:20,207 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:50:20,207 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:50:20,207 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:50:20,207 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:50:20,207 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:50:20,207 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:50:20,223 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-07 03:50:20,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-07 03:50:20,228 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:20,229 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:50:20,231 INFO L410 AbstractCegarLoop]: === Iteration 1 === [checkErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:20,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:20,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1521770910, now seen corresponding path program 1 times [2019-11-07 03:50:20,243 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:20,243 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815732765] [2019-11-07 03:50:20,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:20,477 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 03:50:20,478 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815732765] [2019-11-07 03:50:20,479 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:20,479 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 03:50:20,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176050984] [2019-11-07 03:50:20,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 03:50:20,485 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:20,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 03:50:20,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:50:20,503 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 5 states. [2019-11-07 03:50:20,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:20,582 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-11-07 03:50:20,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 03:50:20,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-07 03:50:20,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:20,592 INFO L225 Difference]: With dead ends: 21 [2019-11-07 03:50:20,592 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 03:50:20,596 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-07 03:50:20,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 03:50:20,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 03:50:20,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 03:50:20,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 03:50:20,622 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-07 03:50:20,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:20,623 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 03:50:20,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 03:50:20,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 03:50:20,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 03:50:20,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 03:50:20,682 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 03:50:20,682 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 03:50:20,682 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 03:50:20,683 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|)) [2019-11-07 03:50:20,683 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 03:50:20,683 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 03:50:20,683 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 17 20) the Hoare annotation is: true [2019-11-07 03:50:20,683 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 17 20) no Hoare annotation was computed. [2019-11-07 03:50:20,684 INFO L443 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-11-07 03:50:20,684 INFO L446 ceAbstractionStarter]: At program point checkENTRY(lines 4 12) the Hoare annotation is: true [2019-11-07 03:50:20,685 INFO L443 ceAbstractionStarter]: For program point checkErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-11-07 03:50:20,685 INFO L443 ceAbstractionStarter]: For program point checkFINAL(lines 4 12) no Hoare annotation was computed. [2019-11-07 03:50:20,686 INFO L439 ceAbstractionStarter]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= |~#a~0.base| ~pa~0.base)) (not (= |check_#in~b.offset| |check_#in~a.offset|)) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= |check_#in~a.base| |check_#in~b.base|))) [2019-11-07 03:50:20,687 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-07 03:50:20,687 INFO L443 ceAbstractionStarter]: For program point checkEXIT(lines 4 12) no Hoare annotation was computed. [2019-11-07 03:50:20,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:50:20 BoogieIcfgContainer [2019-11-07 03:50:20,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 03:50:20,705 INFO L168 Benchmark]: Toolchain (without parser) took 1361.20 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 102.9 MB in the beginning and 133.4 MB in the end (delta: -30.5 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:20,706 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 03:50:20,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.51 ms. Allocated memory is still 145.2 MB. Free memory was 102.5 MB in the beginning and 93.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:20,708 INFO L168 Benchmark]: Boogie Preprocessor took 141.26 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 93.1 MB in the beginning and 181.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:20,709 INFO L168 Benchmark]: RCFGBuilder took 319.32 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 166.5 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:20,710 INFO L168 Benchmark]: TraceAbstraction took 591.72 ms. Allocated memory is still 202.9 MB. Free memory was 166.5 MB in the beginning and 133.4 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:20,714 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.51 ms. Allocated memory is still 145.2 MB. Free memory was 102.5 MB in the beginning and 93.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.26 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 93.1 MB in the beginning and 181.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 319.32 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 166.5 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 591.72 ms. Allocated memory is still 202.9 MB. Free memory was 166.5 MB in the beginning and 133.4 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: ((!(a == pa) || !(b == a)) || !(a == pa)) || !(a == b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 12 SDslu, 16 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 28 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 44 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 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...