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 -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 10:18:10,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 10:18:10,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 10:18:10,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 10:18:10,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 10:18:10,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 10:18:10,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 10:18:10,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 10:18:10,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 10:18:11,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 10:18:11,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 10:18:11,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 10:18:11,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 10:18:11,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 10:18:11,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 10:18:11,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 10:18:11,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 10:18:11,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 10:18:11,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 10:18:11,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 10:18:11,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 10:18:11,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 10:18:11,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 10:18:11,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 10:18:11,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 10:18:11,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 10:18:11,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 10:18:11,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 10:18:11,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 10:18:11,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 10:18:11,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 10:18:11,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 10:18:11,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 10:18:11,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 10:18:11,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 10:18:11,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 10:18:11,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 10:18:11,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 10:18:11,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 10:18:11,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 10:18:11,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 10:18:11,033 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 [2019-10-02 10:18:11,056 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 10:18:11,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 10:18:11,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 10:18:11,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 10:18:11,058 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 10:18:11,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 10:18:11,058 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 10:18:11,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 10:18:11,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 10:18:11,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 10:18:11,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 10:18:11,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 10:18:11,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 10:18:11,061 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 10:18:11,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 10:18:11,061 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 10:18:11,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 10:18:11,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 10:18:11,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 10:18:11,062 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 10:18:11,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 10:18:11,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 10:18:11,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 10:18:11,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 10:18:11,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 10:18:11,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 10:18:11,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 10:18:11,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 10:18:11,064 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 10:18:11,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 10:18:11,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 10:18:11,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 10:18:11,139 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 10:18:11,139 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 10:18:11,140 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure-1.i [2019-10-02 10:18:11,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5508e41d9/d97a9d64c2ed40bba6784a9ba2be7761/FLAGaf2bd6d5f [2019-10-02 10:18:11,622 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 10:18:11,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure-1.i [2019-10-02 10:18:11,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5508e41d9/d97a9d64c2ed40bba6784a9ba2be7761/FLAGaf2bd6d5f [2019-10-02 10:18:12,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5508e41d9/d97a9d64c2ed40bba6784a9ba2be7761 [2019-10-02 10:18:12,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 10:18:12,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 10:18:12,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 10:18:12,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 10:18:12,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 10:18:12,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:12" (1/1) ... [2019-10-02 10:18:12,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35da1448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12, skipping insertion in model container [2019-10-02 10:18:12,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:12" (1/1) ... [2019-10-02 10:18:12,081 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 10:18:12,099 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 10:18:12,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 10:18:12,304 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 10:18:12,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 10:18:12,424 INFO L192 MainTranslator]: Completed translation [2019-10-02 10:18:12,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12 WrapperNode [2019-10-02 10:18:12,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 10:18:12,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 10:18:12,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 10:18:12,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 10:18:12,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12" (1/1) ... [2019-10-02 10:18:12,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12" (1/1) ... [2019-10-02 10:18:12,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12" (1/1) ... [2019-10-02 10:18:12,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12" (1/1) ... [2019-10-02 10:18:12,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12" (1/1) ... [2019-10-02 10:18:12,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12" (1/1) ... [2019-10-02 10:18:12,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12" (1/1) ... [2019-10-02 10:18:12,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 10:18:12,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 10:18:12,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 10:18:12,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 10:18:12,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12" (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 [2019-10-02 10:18:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 10:18:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 10:18:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-10-02 10:18:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 10:18:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 10:18:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-10-02 10:18:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 10:18:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 10:18:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 10:18:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 10:18:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 10:18:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 10:18:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 10:18:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 10:18:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 10:18:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 10:18:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 10:18:12,735 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 10:18:12,736 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-02 10:18:12,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:12 BoogieIcfgContainer [2019-10-02 10:18:12,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 10:18:12,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 10:18:12,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 10:18:12,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 10:18:12,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:18:12" (1/3) ... [2019-10-02 10:18:12,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf52b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:12, skipping insertion in model container [2019-10-02 10:18:12,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:12" (2/3) ... [2019-10-02 10:18:12,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf52b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:12, skipping insertion in model container [2019-10-02 10:18:12,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:12" (3/3) ... [2019-10-02 10:18:12,745 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure-1.i [2019-10-02 10:18:12,754 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 10:18:12,761 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 10:18:12,777 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 10:18:12,803 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 10:18:12,804 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 10:18:12,804 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 10:18:12,804 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 10:18:12,804 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 10:18:12,804 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 10:18:12,804 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 10:18:12,804 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 10:18:12,804 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 10:18:12,818 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-02 10:18:12,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-02 10:18:12,822 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:18:12,823 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:18:12,825 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:18:12,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:18:12,829 INFO L82 PathProgramCache]: Analyzing trace with hash -642389624, now seen corresponding path program 1 times [2019-10-02 10:18:12,831 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:18:12,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:18:12,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:12,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:12,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:13,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 10:18:13,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:18:13,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 10:18:13,088 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 10:18:13,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 10:18:13,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 10:18:13,106 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-10-02 10:18:13,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:18:13,158 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-10-02 10:18:13,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 10:18:13,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-02 10:18:13,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:18:13,173 INFO L225 Difference]: With dead ends: 22 [2019-10-02 10:18:13,174 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 10:18:13,184 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 10:18:13,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 10:18:13,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 10:18:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 10:18:13,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 10:18:13,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-10-02 10:18:13,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:18:13,233 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 10:18:13,233 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 10:18:13,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 10:18:13,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 10:18:13,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-02 10:18:13,264 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-02 10:18:13,265 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-02 10:18:13,265 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-02 10:18:13,265 INFO L443 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 7 10) no Hoare annotation was computed. [2019-10-02 10:18:13,266 INFO L443 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-10-02 10:18:13,266 INFO L443 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 7 10) no Hoare annotation was computed. [2019-10-02 10:18:13,266 INFO L446 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 7 10) the Hoare annotation is: true [2019-10-02 10:18:13,266 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-02 10:18:13,266 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-02 10:18:13,266 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-02 10:18:13,266 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-02 10:18:13,267 INFO L443 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-10-02 10:18:13,267 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 24 32) the Hoare annotation is: true [2019-10-02 10:18:13,267 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 24 32) no Hoare annotation was computed. [2019-10-02 10:18:13,268 INFO L439 ceAbstractionStarter]: At program point L30-2(line 30) the Hoare annotation is: false [2019-10-02 10:18:13,268 INFO L443 ceAbstractionStarter]: For program point L30-3(line 30) no Hoare annotation was computed. [2019-10-02 10:18:13,268 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 24 32) no Hoare annotation was computed. [2019-10-02 10:18:13,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 10:18:13 BoogieIcfgContainer [2019-10-02 10:18:13,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 10:18:13,275 INFO L168 Benchmark]: Toolchain (without parser) took 1208.78 ms. Allocated memory was 138.9 MB in the beginning and 198.2 MB in the end (delta: 59.2 MB). Free memory was 86.6 MB in the beginning and 133.6 MB in the end (delta: -47.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:13,277 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 10:18:13,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.38 ms. Allocated memory was 138.9 MB in the beginning and 198.2 MB in the end (delta: 59.2 MB). Free memory was 86.4 MB in the beginning and 176.6 MB in the end (delta: -90.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:13,279 INFO L168 Benchmark]: Boogie Preprocessor took 54.06 ms. Allocated memory is still 198.2 MB. Free memory was 176.6 MB in the beginning and 174.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:13,281 INFO L168 Benchmark]: RCFGBuilder took 257.35 ms. Allocated memory is still 198.2 MB. Free memory was 174.3 MB in the beginning and 160.1 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:13,282 INFO L168 Benchmark]: TraceAbstraction took 534.11 ms. Allocated memory is still 198.2 MB. Free memory was 159.5 MB in the beginning and 133.6 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:13,286 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 359.38 ms. Allocated memory was 138.9 MB in the beginning and 198.2 MB in the end (delta: 59.2 MB). Free memory was 86.4 MB in the beginning and 176.6 MB in the end (delta: -90.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.06 ms. Allocated memory is still 198.2 MB. Free memory was 176.6 MB in the beginning and 174.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 257.35 ms. Allocated memory is still 198.2 MB. Free memory was 174.3 MB in the beginning and 160.1 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 534.11 ms. Allocated memory is still 198.2 MB. Free memory was 159.5 MB in the beginning and 133.6 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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, 17 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 1 SDslu, 8 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...