/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/test18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:50:23,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:50:23,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:50:23,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:50:23,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:50:23,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:50:23,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:50:23,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:50:23,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:50:23,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:50:23,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:50:23,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:50:23,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:50:23,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:50:23,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:50:23,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:50:23,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:50:23,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:50:23,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:50:23,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:50:23,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:50:23,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:50:23,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:50:23,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:50:23,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 03:50:23,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:50:23,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:50:23,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:50:23,229 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 03:50:23,257 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:50:23,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:50:23,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:50:23,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:50:23,259 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:50:23,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:50:23,259 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:50:23,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:50:23,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:50:23,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:50:23,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:50:23,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:50:23,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:50:23,260 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:50:23,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:50:23,261 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:50:23,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:50:23,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:50:23,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:50:23,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:50:23,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:50:23,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:50:23,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:50:23,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:50:23,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:50:23,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:50:23,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:50:23,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:50:23,263 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 03:50:23,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:50:23,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:50:23,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:50:23,598 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:50:23,598 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:50:23,599 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test18.c [2019-11-07 03:50:23,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce188522f/a7c77600f3404f8389375237cac946a3/FLAG1897012d0 [2019-11-07 03:50:24,083 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:50:24,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test18.c [2019-11-07 03:50:24,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce188522f/a7c77600f3404f8389375237cac946a3/FLAG1897012d0 [2019-11-07 03:50:24,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce188522f/a7c77600f3404f8389375237cac946a3 [2019-11-07 03:50:24,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:50:24,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:50:24,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:24,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:50:24,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:50:24,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:24" (1/1) ... [2019-11-07 03:50:24,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570eb139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24, skipping insertion in model container [2019-11-07 03:50:24,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:24" (1/1) ... [2019-11-07 03:50:24,487 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:50:24,504 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:50:24,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:24,727 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:50:24,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:24,759 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:50:24,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24 WrapperNode [2019-11-07 03:50:24,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:24,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:50:24,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:50:24,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:50:24,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24" (1/1) ... [2019-11-07 03:50:24,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24" (1/1) ... [2019-11-07 03:50:24,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24" (1/1) ... [2019-11-07 03:50:24,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24" (1/1) ... [2019-11-07 03:50:24,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24" (1/1) ... [2019-11-07 03:50:24,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24" (1/1) ... [2019-11-07 03:50:24,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24" (1/1) ... [2019-11-07 03:50:24,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:50:24,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:50:24,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:50:24,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:50:24,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24" (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 03:50:24,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:50:24,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:50:24,950 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-07 03:50:24,950 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-07 03:50:24,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:50:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:50:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-07 03:50:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:50:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:50:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-07 03:50:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:50:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:50:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:50:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:50:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:50:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:50:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:50:25,269 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:50:25,269 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 03:50:25,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:25 BoogieIcfgContainer [2019-11-07 03:50:25,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:50:25,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:50:25,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:50:25,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:50:25,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:50:24" (1/3) ... [2019-11-07 03:50:25,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a56ba8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:25, skipping insertion in model container [2019-11-07 03:50:25,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:24" (2/3) ... [2019-11-07 03:50:25,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a56ba8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:25, skipping insertion in model container [2019-11-07 03:50:25,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:25" (3/3) ... [2019-11-07 03:50:25,283 INFO L109 eAbstractionObserver]: Analyzing ICFG test18.c [2019-11-07 03:50:25,306 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:50:25,319 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:50:25,332 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:50:25,365 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:50:25,365 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:50:25,365 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:50:25,365 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:50:25,366 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:50:25,366 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:50:25,366 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:50:25,366 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:50:25,388 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-07 03:50:25,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-07 03:50:25,394 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:25,395 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:50:25,397 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:25,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:25,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1649959282, now seen corresponding path program 1 times [2019-11-07 03:50:25,411 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:25,411 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144558753] [2019-11-07 03:50:25,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:25,815 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 03:50:25,817 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144558753] [2019-11-07 03:50:25,818 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:25,818 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 03:50:25,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913870854] [2019-11-07 03:50:25,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 03:50:25,825 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:25,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 03:50:25,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 03:50:25,846 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 9 states. [2019-11-07 03:50:26,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:26,037 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-11-07 03:50:26,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 03:50:26,040 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-11-07 03:50:26,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:26,047 INFO L225 Difference]: With dead ends: 24 [2019-11-07 03:50:26,048 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 03:50:26,051 INFO L630 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 [2019-11-07 03:50:26,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 03:50:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 03:50:26,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 03:50:26,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 03:50:26,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-07 03:50:26,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:26,079 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 03:50:26,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 03:50:26,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 03:50:26,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 03:50:26,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 03:50:26,149 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 03:50:26,149 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 03:50:26,149 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|)) [2019-11-07 03:50:26,149 INFO L443 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-11-07 03:50:26,149 INFO L443 ceAbstractionStarter]: For program point fEXIT(lines 8 11) no Hoare annotation was computed. [2019-11-07 03:50:26,150 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)|)) [2019-11-07 03:50:26,150 INFO L443 ceAbstractionStarter]: For program point gEXIT(lines 4 6) no Hoare annotation was computed. [2019-11-07 03:50:26,150 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)|)) [2019-11-07 03:50:26,150 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 03:50:26,150 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 03:50:26,151 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 03:50:26,151 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 03:50:26,151 INFO L439 ceAbstractionStarter]: At program point L17(lines 13 24) the Hoare annotation is: false [2019-11-07 03:50:26,151 INFO L443 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2019-11-07 03:50:26,151 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)|)) [2019-11-07 03:50:26,151 INFO L443 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-11-07 03:50:26,152 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)|)) [2019-11-07 03:50:26,153 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2019-11-07 03:50:26,153 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 13 24) no Hoare annotation was computed. [2019-11-07 03:50:26,153 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 13 24) no Hoare annotation was computed. [2019-11-07 03:50:26,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:50:26 BoogieIcfgContainer [2019-11-07 03:50:26,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 03:50:26,166 INFO L168 Benchmark]: Toolchain (without parser) took 1694.78 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 101.7 MB in the beginning and 113.3 MB in the end (delta: -11.6 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:26,168 INFO L168 Benchmark]: CDTParser took 1.43 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 03:50:26,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.35 ms. Allocated memory is still 138.4 MB. Free memory was 101.5 MB in the beginning and 91.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:26,173 INFO L168 Benchmark]: Boogie Preprocessor took 128.52 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 180.7 MB in the end (delta: -88.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:26,174 INFO L168 Benchmark]: RCFGBuilder took 381.49 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 163.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:26,175 INFO L168 Benchmark]: TraceAbstraction took 890.77 ms. Allocated memory is still 202.4 MB. Free memory was 162.8 MB in the beginning and 113.3 MB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:26,186 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.35 ms. Allocated memory is still 138.4 MB. Free memory was 101.5 MB in the beginning and 91.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.52 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 180.7 MB in the end (delta: -88.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 381.49 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 163.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 890.77 ms. Allocated memory is still 202.4 MB. Free memory was 162.8 MB in the beginning and 113.3 MB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 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: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, 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, 0.2s 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...