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/nested_structure_noptr-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:53:21,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:53:21,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:53:21,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:53:21,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:53:21,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:53:21,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:53:21,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:53:21,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:53:21,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:53:21,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:53:21,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:53:21,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:53:21,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:53:21,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:53:21,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:53:21,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:53:21,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:53:21,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:53:21,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:53:21,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:53:21,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:53:21,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:53:21,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:53:21,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 22:53:21,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:53:21,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:53:21,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:53:21,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:53:21,310 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:53:21,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:53:21,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:53:21,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:53:21,312 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:53:21,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:53:21,312 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:53:21,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:53:21,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:53:21,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:53:21,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:53:21,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:53:21,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:53:21,313 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:53:21,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:53:21,314 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:53:21,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:53:21,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:53:21,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:53:21,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:53:21,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:53:21,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:53:21,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:53:21,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:53:21,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:53:21,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:53:21,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:53:21,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:53:21,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:53:21,643 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:53:21,660 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:53:21,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:53:21,665 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:53:21,666 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:53:21,667 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_noptr-1.i [2019-10-13 22:53:21,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e238aae/17297e35c64e46168bc78b29c7c86a6d/FLAGbe21b1dfa [2019-10-13 22:53:22,175 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:53:22,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_noptr-1.i [2019-10-13 22:53:22,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e238aae/17297e35c64e46168bc78b29c7c86a6d/FLAGbe21b1dfa [2019-10-13 22:53:22,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e238aae/17297e35c64e46168bc78b29c7c86a6d [2019-10-13 22:53:22,578 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:53:22,581 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:53:22,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:53:22,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:53:22,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:53:22,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:53:22" (1/1) ... [2019-10-13 22:53:22,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70dea371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22, skipping insertion in model container [2019-10-13 22:53:22,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:53:22" (1/1) ... [2019-10-13 22:53:22,599 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:53:22,617 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:53:22,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:53:22,798 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:53:22,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:53:22,854 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:53:22,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22 WrapperNode [2019-10-13 22:53:22,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:53:22,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:53:22,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:53:22,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:53:22,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22" (1/1) ... [2019-10-13 22:53:22,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22" (1/1) ... [2019-10-13 22:53:22,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22" (1/1) ... [2019-10-13 22:53:22,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22" (1/1) ... [2019-10-13 22:53:22,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22" (1/1) ... [2019-10-13 22:53:22,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22" (1/1) ... [2019-10-13 22:53:22,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22" (1/1) ... [2019-10-13 22:53:22,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:53:22,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:53:22,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:53:22,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:53:22,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:53:23,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:53:23,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:53:23,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 22:53:23,046 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:53:23,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:53:23,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 22:53:23,047 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 22:53:23,047 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2019-10-13 22:53:23,047 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2019-10-13 22:53:23,047 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:53:23,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:53:23,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:53:23,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:53:23,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:53:23,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:53:23,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:53:23,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:53:23,237 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:53:23,237 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:53:23,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:53:23 BoogieIcfgContainer [2019-10-13 22:53:23,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:53:23,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:53:23,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:53:23,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:53:23,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:53:22" (1/3) ... [2019-10-13 22:53:23,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163c5d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:53:23, skipping insertion in model container [2019-10-13 22:53:23,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:22" (2/3) ... [2019-10-13 22:53:23,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163c5d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:53:23, skipping insertion in model container [2019-10-13 22:53:23,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:53:23" (3/3) ... [2019-10-13 22:53:23,246 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_noptr-1.i [2019-10-13 22:53:23,255 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:53:23,263 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:53:23,274 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:53:23,317 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:53:23,317 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:53:23,317 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:53:23,318 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:53:23,318 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:53:23,318 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:53:23,318 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:53:23,318 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:53:23,343 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-13 22:53:23,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-13 22:53:23,350 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:53:23,351 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:53:23,355 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:53:23,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:53:23,368 INFO L82 PathProgramCache]: Analyzing trace with hash 683042385, now seen corresponding path program 1 times [2019-10-13 22:53:23,379 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:53:23,379 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789456418] [2019-10-13 22:53:23,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:23,380 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:23,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:53:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:53:23,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:53:23,573 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789456418] [2019-10-13 22:53:23,574 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:53:23,574 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:53:23,574 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49745572] [2019-10-13 22:53:23,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:53:23,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:53:23,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:53:23,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:53:23,593 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2019-10-13 22:53:23,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:53:23,656 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-10-13 22:53:23,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:53:23,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-10-13 22:53:23,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:53:23,665 INFO L225 Difference]: With dead ends: 22 [2019-10-13 22:53:23,665 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 22:53:23,669 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:53:23,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 22:53:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 22:53:23,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 22:53:23,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 22:53:23,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-10-13 22:53:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:53:23,693 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 22:53:23,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:53:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 22:53:23,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 22:53:23,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 22:53:23,715 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 22:53:23,715 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:53:23,715 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:53:23,715 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 22:53:23,716 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 22:53:23,716 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 22:53:23,716 INFO L439 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (= 4 |main_#t~mem0|) [2019-10-13 22:53:23,716 INFO L443 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-10-13 22:53:23,716 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 27 33) the Hoare annotation is: true [2019-10-13 22:53:23,717 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 27 33) no Hoare annotation was computed. [2019-10-13 22:53:23,717 INFO L443 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2019-10-13 22:53:23,717 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2019-10-13 22:53:23,717 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-10-13 22:53:23,718 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2019-10-13 22:53:23,718 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-10-13 22:53:23,718 INFO L443 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-10-13 22:53:23,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:53:23 BoogieIcfgContainer [2019-10-13 22:53:23,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 22:53:23,724 INFO L168 Benchmark]: Toolchain (without parser) took 1144.26 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 103.2 MB in the beginning and 139.6 MB in the end (delta: -36.4 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-10-13 22:53:23,725 INFO L168 Benchmark]: CDTParser took 0.20 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: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-13 22:53:23,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.54 ms. Allocated memory is still 145.2 MB. Free memory was 103.0 MB in the beginning and 93.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-13 22:53:23,728 INFO L168 Benchmark]: Boogie Preprocessor took 134.29 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 93.1 MB in the beginning and 179.0 MB in the end (delta: -86.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-13 22:53:23,729 INFO L168 Benchmark]: RCFGBuilder took 247.74 ms. Allocated memory is still 201.3 MB. Free memory was 179.0 MB in the beginning and 165.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2019-10-13 22:53:23,729 INFO L168 Benchmark]: TraceAbstraction took 481.97 ms. Allocated memory is still 201.3 MB. Free memory was 165.1 MB in the beginning and 139.6 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-10-13 22:53:23,733 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 272.54 ms. Allocated memory is still 145.2 MB. Free memory was 103.0 MB in the beginning and 93.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.29 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 93.1 MB in the beginning and 179.0 MB in the end (delta: -86.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 247.74 ms. Allocated memory is still 201.3 MB. Free memory was 179.0 MB in the beginning and 165.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 481.97 ms. Allocated memory is still 201.3 MB. Free memory was 165.1 MB in the beginning and 139.6 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 5 SDslu, 25 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 8 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 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...