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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-examples/standard_copyInitSum3_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:12,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:12,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:12,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:12,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:12,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:12,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:12,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:12,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:12,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:12,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:12,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:12,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:12,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:12,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:12,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:12,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:12,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:12,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:12,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:12,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:12,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:12,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:12,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:12,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:12,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:12,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:12,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:12,892 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 19:53:12,907 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:12,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:12,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:12,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:12,909 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:12,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:12,909 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:12,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:12,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:12,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:12,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:12,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:12,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:12,911 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:12,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:12,911 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:12,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:12,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:12,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:12,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:12,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:12,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:12,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:12,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:12,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:12,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:12,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:12,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:12,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 19:53:13,215 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:13,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:13,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:13,235 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:13,236 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:13,237 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copyInitSum3_ground.i [2019-10-13 19:53:13,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d1bba17/ca527b4ac3684434b9d740583828b03f/FLAGa6069da0d [2019-10-13 19:53:13,793 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:13,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copyInitSum3_ground.i [2019-10-13 19:53:13,800 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d1bba17/ca527b4ac3684434b9d740583828b03f/FLAGa6069da0d [2019-10-13 19:53:14,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d1bba17/ca527b4ac3684434b9d740583828b03f [2019-10-13 19:53:14,143 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:14,144 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:14,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:14,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:14,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:14,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565e9bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14, skipping insertion in model container [2019-10-13 19:53:14,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,161 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:14,177 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:14,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:14,385 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:14,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:14,428 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:14,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14 WrapperNode [2019-10-13 19:53:14,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:14,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:14,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:14,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:14,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:14,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:14,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:14,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:14,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (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 19:53:14,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:14,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:14,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:14,631 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:14,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:14,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:14,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:14,879 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:14,879 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:53:14,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:14 BoogieIcfgContainer [2019-10-13 19:53:14,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:14,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:14,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:14,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:14,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:14" (1/3) ... [2019-10-13 19:53:14,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0a1567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:14, skipping insertion in model container [2019-10-13 19:53:14,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (2/3) ... [2019-10-13 19:53:14,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0a1567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:14, skipping insertion in model container [2019-10-13 19:53:14,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:14" (3/3) ... [2019-10-13 19:53:14,890 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copyInitSum3_ground.i [2019-10-13 19:53:14,906 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:14,917 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:14,931 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:14,971 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:14,971 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:14,971 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:14,971 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:14,972 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:14,972 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:14,972 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:14,972 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:14,993 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-10-13 19:53:15,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 19:53:15,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:15,003 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:15,005 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:15,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:15,011 INFO L82 PathProgramCache]: Analyzing trace with hash 656367922, now seen corresponding path program 1 times [2019-10-13 19:53:15,023 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:15,023 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170585312] [2019-10-13 19:53:15,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:15,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:15,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:15,166 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 19:53:15,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170585312] [2019-10-13 19:53:15,168 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:15,168 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:15,168 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409940754] [2019-10-13 19:53:15,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:15,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:15,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:15,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:15,191 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-10-13 19:53:15,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:15,226 INFO L93 Difference]: Finished difference Result 57 states and 76 transitions. [2019-10-13 19:53:15,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:15,228 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-13 19:53:15,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:15,238 INFO L225 Difference]: With dead ends: 57 [2019-10-13 19:53:15,238 INFO L226 Difference]: Without dead ends: 27 [2019-10-13 19:53:15,243 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:15,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-13 19:53:15,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-10-13 19:53:15,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-13 19:53:15,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-10-13 19:53:15,308 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 19 [2019-10-13 19:53:15,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:15,309 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-10-13 19:53:15,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:15,310 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2019-10-13 19:53:15,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 19:53:15,313 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:15,313 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:15,314 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:15,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:15,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1829979950, now seen corresponding path program 1 times [2019-10-13 19:53:15,316 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:15,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224843429] [2019-10-13 19:53:15,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:15,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:15,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:15,457 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 19:53:15,458 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224843429] [2019-10-13 19:53:15,458 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:15,459 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:15,459 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822764969] [2019-10-13 19:53:15,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:15,462 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:15,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:15,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:15,466 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 3 states. [2019-10-13 19:53:15,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:15,602 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2019-10-13 19:53:15,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:15,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-13 19:53:15,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:15,604 INFO L225 Difference]: With dead ends: 54 [2019-10-13 19:53:15,605 INFO L226 Difference]: Without dead ends: 34 [2019-10-13 19:53:15,606 INFO L600 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 [2019-10-13 19:53:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-13 19:53:15,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2019-10-13 19:53:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-13 19:53:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-10-13 19:53:15,614 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 19 [2019-10-13 19:53:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:15,615 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-10-13 19:53:15,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-10-13 19:53:15,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-13 19:53:15,616 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:15,617 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:15,617 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:15,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:15,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1442018896, now seen corresponding path program 1 times [2019-10-13 19:53:15,618 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:15,618 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894100838] [2019-10-13 19:53:15,619 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:15,619 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:15,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:15,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:53:15,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894100838] [2019-10-13 19:53:15,701 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057531197] [2019-10-13 19:53:15,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:15,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:15,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:15,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:53:15,826 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:15,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:53:15,861 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [173831525] [2019-10-13 19:53:15,867 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 27 [2019-10-13 19:53:15,904 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:15,904 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:15,972 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:15,974 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-10-13 19:53:15,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:15,977 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:16,009 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:16,009 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:16,011 INFO L553 sIntCurrentIteration]: We unified 25 AI predicates to 25 [2019-10-13 19:53:16,011 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:16,012 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:16,012 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-13 19:53:16,013 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576708570] [2019-10-13 19:53:16,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:16,014 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:16,014 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:16,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:16,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:16,015 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 2 states. [2019-10-13 19:53:16,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:16,018 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2019-10-13 19:53:16,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:16,018 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2019-10-13 19:53:16,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:16,019 INFO L225 Difference]: With dead ends: 31 [2019-10-13 19:53:16,019 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:16,020 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:16,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:16,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:16,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:16,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:16,021 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-10-13 19:53:16,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:16,021 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:16,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:16,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:16,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:16,226 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:16,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:16,269 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:16,269 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:16,269 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:16,269 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:16,270 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:16,270 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:16,270 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:16,270 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 25) no Hoare annotation was computed. [2019-10-13 19:53:16,270 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2019-10-13 19:53:16,271 INFO L439 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: false [2019-10-13 19:53:16,271 INFO L443 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-10-13 19:53:16,271 INFO L439 ceAbstractionStarter]: At program point L7-2(lines 7 10) the Hoare annotation is: false [2019-10-13 19:53:16,271 INFO L443 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-10-13 19:53:16,271 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 23) no Hoare annotation was computed. [2019-10-13 19:53:16,271 INFO L439 ceAbstractionStarter]: At program point L21-3(lines 21 23) the Hoare annotation is: false [2019-10-13 19:53:16,272 INFO L443 ceAbstractionStarter]: For program point L21-4(lines 21 23) no Hoare annotation was computed. [2019-10-13 19:53:16,272 INFO L443 ceAbstractionStarter]: For program point L17-2(lines 17 19) no Hoare annotation was computed. [2019-10-13 19:53:16,272 INFO L439 ceAbstractionStarter]: At program point L17-3(lines 17 19) the Hoare annotation is: false [2019-10-13 19:53:16,272 INFO L443 ceAbstractionStarter]: For program point L17-4(lines 17 19) no Hoare annotation was computed. [2019-10-13 19:53:16,272 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 25) no Hoare annotation was computed. [2019-10-13 19:53:16,272 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 25) the Hoare annotation is: true [2019-10-13 19:53:16,273 INFO L439 ceAbstractionStarter]: At program point L22(line 22) the Hoare annotation is: false [2019-10-13 19:53:16,273 INFO L443 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-10-13 19:53:16,273 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2019-10-13 19:53:16,273 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 16) the Hoare annotation is: false [2019-10-13 19:53:16,273 INFO L443 ceAbstractionStarter]: For program point L14-4(lines 14 16) no Hoare annotation was computed. [2019-10-13 19:53:16,273 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:16,274 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:16,274 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:16,275 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:16,275 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:16,275 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:16,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:16 BoogieIcfgContainer [2019-10-13 19:53:16,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:16,286 INFO L168 Benchmark]: Toolchain (without parser) took 2141.34 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 102.8 MB in the beginning and 99.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 66.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:16,287 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:16,288 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.23 ms. Allocated memory is still 138.4 MB. Free memory was 102.6 MB in the beginning and 92.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:16,289 INFO L168 Benchmark]: Boogie Preprocessor took 128.66 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 179.1 MB in the end (delta: -86.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:16,290 INFO L168 Benchmark]: RCFGBuilder took 321.86 ms. Allocated memory is still 201.3 MB. Free memory was 179.1 MB in the beginning and 163.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:16,291 INFO L168 Benchmark]: TraceAbstraction took 1402.05 ms. Allocated memory is still 201.3 MB. Free memory was 162.9 MB in the beginning and 99.7 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:16,295 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.23 ms. Allocated memory is still 138.4 MB. Free memory was 102.6 MB in the beginning and 92.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.66 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 179.1 MB in the end (delta: -86.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 321.86 ms. Allocated memory is still 201.3 MB. Free memory was 179.1 MB in the beginning and 163.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1402.05 ms. Allocated memory is still 201.3 MB. Free memory was 162.9 MB in the beginning and 99.7 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 32 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 3 SDslu, 16 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 11 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 2909 SizeOfPredicates, 1 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 9/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 110, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.95, AVG_VARS_REMOVED_DURING_WEAKENING: 0.84, AVG_WEAKENED_CONJUNCTS: 0.24, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...