/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:33:17,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:33:17,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:33:17,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:33:17,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:33:17,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:33:17,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:33:17,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:33:17,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:33:17,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:33:17,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:33:17,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:33:17,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:33:17,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:33:17,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:33:17,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:33:17,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:33:17,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:33:17,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:33:17,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:33:17,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:33:17,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:33:17,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:33:17,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:33:17,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 00:33:17,817 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:33:17,842 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:33:17,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:33:17,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:33:17,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:33:17,845 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:33:17,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:33:17,845 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:33:17,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:33:17,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:33:17,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:33:17,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:33:17,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:33:17,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:33:17,848 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:33:17,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:33:17,848 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:33:17,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:33:17,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:33:17,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:33:17,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:33:17,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:33:17,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:33:17,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:33:17,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:33:17,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:33:17,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:33:17,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:33:17,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:33:17,852 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 [2019-11-07 00:33:18,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:33:18,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:33:18,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:33:18,139 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:33:18,139 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:33:18,140 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-1.i [2019-11-07 00:33:18,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16993d763/2ccdb6aee1ce4e22900af027f3d4342d/FLAG83e292d95 [2019-11-07 00:33:18,617 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:33:18,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-1.i [2019-11-07 00:33:18,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16993d763/2ccdb6aee1ce4e22900af027f3d4342d/FLAG83e292d95 [2019-11-07 00:33:19,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16993d763/2ccdb6aee1ce4e22900af027f3d4342d [2019-11-07 00:33:19,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:33:19,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:33:19,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:33:19,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:33:19,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:33:19,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:33:19" (1/1) ... [2019-11-07 00:33:19,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128aa138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19, skipping insertion in model container [2019-11-07 00:33:19,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:33:19" (1/1) ... [2019-11-07 00:33:19,065 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:33:19,081 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:33:19,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:33:19,244 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:33:19,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:33:19,282 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:33:19,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19 WrapperNode [2019-11-07 00:33:19,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:33:19,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:33:19,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:33:19,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:33:19,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19" (1/1) ... [2019-11-07 00:33:19,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19" (1/1) ... [2019-11-07 00:33:19,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19" (1/1) ... [2019-11-07 00:33:19,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19" (1/1) ... [2019-11-07 00:33:19,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19" (1/1) ... [2019-11-07 00:33:19,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19" (1/1) ... [2019-11-07 00:33:19,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19" (1/1) ... [2019-11-07 00:33:19,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:33:19,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:33:19,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:33:19,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:33:19,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:33:19,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:33:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:33:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:33:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:33:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:33:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:33:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:33:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:33:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:33:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:33:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:33:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:33:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:33:21,741 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:33:21,741 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-07 00:33:21,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:33:21 BoogieIcfgContainer [2019-11-07 00:33:21,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:33:21,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:33:21,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:33:21,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:33:21,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:33:19" (1/3) ... [2019-11-07 00:33:21,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c6a579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:33:21, skipping insertion in model container [2019-11-07 00:33:21,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:19" (2/3) ... [2019-11-07 00:33:21,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c6a579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:33:21, skipping insertion in model container [2019-11-07 00:33:21,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:33:21" (3/3) ... [2019-11-07 00:33:21,771 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-1.i [2019-11-07 00:33:21,792 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:33:21,807 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:33:21,821 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:33:21,843 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:33:21,843 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:33:21,843 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:33:21,843 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:33:21,844 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:33:21,844 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:33:21,844 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:33:21,844 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:33:21,858 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2019-11-07 00:33:21,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 00:33:21,864 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:33:21,865 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:33:21,867 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:33:21,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:21,872 INFO L82 PathProgramCache]: Analyzing trace with hash -956066777, now seen corresponding path program 1 times [2019-11-07 00:33:21,879 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:33:21,879 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344035476] [2019-11-07 00:33:21,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:33:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:21,999 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344035476] [2019-11-07 00:33:22,000 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:33:22,000 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:33:22,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541907378] [2019-11-07 00:33:22,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:33:22,008 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:33:22,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:33:22,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:33:22,026 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2019-11-07 00:33:22,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:33:22,051 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2019-11-07 00:33:22,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:33:22,052 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-11-07 00:33:22,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:33:22,062 INFO L225 Difference]: With dead ends: 46 [2019-11-07 00:33:22,063 INFO L226 Difference]: Without dead ends: 22 [2019-11-07 00:33:22,066 INFO L630 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 [2019-11-07 00:33:22,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-07 00:33:22,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-07 00:33:22,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-07 00:33:22,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-11-07 00:33:22,106 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2019-11-07 00:33:22,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:33:22,106 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-11-07 00:33:22,107 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:33:22,107 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-11-07 00:33:22,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 00:33:22,109 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:33:22,109 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:33:22,109 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:33:22,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:22,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1471973101, now seen corresponding path program 1 times [2019-11-07 00:33:22,110 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:33:22,110 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846546028] [2019-11-07 00:33:22,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:33:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:22,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:22,207 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846546028] [2019-11-07 00:33:22,207 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:33:22,208 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:33:22,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802007373] [2019-11-07 00:33:22,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:33:22,210 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:33:22,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:33:22,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:33:22,213 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 3 states. [2019-11-07 00:33:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:33:22,335 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2019-11-07 00:33:22,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:33:22,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-07 00:33:22,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:33:22,337 INFO L225 Difference]: With dead ends: 43 [2019-11-07 00:33:22,338 INFO L226 Difference]: Without dead ends: 29 [2019-11-07 00:33:22,339 INFO L630 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 [2019-11-07 00:33:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-07 00:33:22,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2019-11-07 00:33:22,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-07 00:33:22,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-07 00:33:22,362 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 14 [2019-11-07 00:33:22,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:33:22,362 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-07 00:33:22,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:33:22,363 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-07 00:33:22,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-07 00:33:22,364 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:33:22,364 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:33:22,364 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:33:22,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:22,366 INFO L82 PathProgramCache]: Analyzing trace with hash 534952077, now seen corresponding path program 1 times [2019-11-07 00:33:22,366 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:33:22,366 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769338927] [2019-11-07 00:33:22,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:33:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:22,551 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769338927] [2019-11-07 00:33:22,551 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847786065] [2019-11-07 00:33:22,551 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 [2019-11-07 00:33:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:22,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-07 00:33:22,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:33:22,682 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-07 00:33:22,683 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:33:22,687 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:33:22,687 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:33:22,688 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-11-07 00:33:22,733 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-07 00:33:22,734 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:33:22,736 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:33:22,737 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:33:22,737 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2019-11-07 00:33:22,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:22,782 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:33:22,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:33:23,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:33:23,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:33:23,068 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:33:23,092 WARN L225 Elim1Store]: Array PQE input equivalent to true [2019-11-07 00:33:23,092 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:33:23,144 INFO L567 ElimStorePlain]: treesize reduction 174, result has 13.4 percent of original size [2019-11-07 00:33:23,148 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2019-11-07 00:33:23,158 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2019-11-07 00:33:23,160 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2019-11-07 00:33:23,168 INFO L567 ElimStorePlain]: treesize reduction 6, result has 60.0 percent of original size [2019-11-07 00:33:23,169 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:33:23,175 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:33:23,175 INFO L464 ElimStorePlain]: Eliminatee v_prenex_6 vanished before elimination [2019-11-07 00:33:23,176 INFO L464 ElimStorePlain]: Eliminatee |#memory_int| vanished before elimination [2019-11-07 00:33:23,176 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:33:23,177 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 12 variables, input treesize:247, output treesize:16 [2019-11-07 00:33:23,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:23,215 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1894463735] [2019-11-07 00:33:23,221 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 17 [2019-11-07 00:33:23,258 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:33:23,259 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:33:23,332 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:33:23,334 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 17 variables. [2019-11-07 00:33:23,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:23,337 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:33:23,377 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-07 00:33:23,378 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 00:33:23,379 INFO L553 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2019-11-07 00:33:23,380 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 00:33:23,380 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:33:23,380 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 8, 9] total 16 [2019-11-07 00:33:23,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121113959] [2019-11-07 00:33:23,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:33:23,381 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:33:23,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:33:23,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:33:23,383 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 2 states. [2019-11-07 00:33:23,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:33:23,385 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-11-07 00:33:23,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:33:23,385 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-07 00:33:23,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:33:23,386 INFO L225 Difference]: With dead ends: 25 [2019-11-07 00:33:23,386 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:33:23,387 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:33:23,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:33:23,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:33:23,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:33:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:33:23,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-11-07 00:33:23,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:33:23,388 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:33:23,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:33:23,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:33:23,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:33:23,592 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:33:23,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:33:23,628 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:33:23,628 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:33:23,629 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:33:23,629 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:33:23,629 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:33:23,629 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:33:23,629 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:33:23,629 INFO L439 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: false [2019-11-07 00:33:23,629 INFO L443 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2019-11-07 00:33:23,629 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: false [2019-11-07 00:33:23,630 INFO L443 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-11-07 00:33:23,630 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 16 33) no Hoare annotation was computed. [2019-11-07 00:33:23,630 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 31) no Hoare annotation was computed. [2019-11-07 00:33:23,630 INFO L439 ceAbstractionStarter]: At program point L25-3(lines 25 31) the Hoare annotation is: false [2019-11-07 00:33:23,630 INFO L443 ceAbstractionStarter]: For program point L25-4(lines 25 31) no Hoare annotation was computed. [2019-11-07 00:33:23,630 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 23) no Hoare annotation was computed. [2019-11-07 00:33:23,630 INFO L439 ceAbstractionStarter]: At program point L21-3(lines 21 23) the Hoare annotation is: false [2019-11-07 00:33:23,631 INFO L443 ceAbstractionStarter]: For program point L21-4(lines 21 23) no Hoare annotation was computed. [2019-11-07 00:33:23,631 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 16 33) no Hoare annotation was computed. [2019-11-07 00:33:23,631 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 16 33) the Hoare annotation is: true [2019-11-07 00:33:23,631 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2019-11-07 00:33:23,631 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 8 14) the Hoare annotation is: true [2019-11-07 00:33:23,631 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2019-11-07 00:33:23,632 INFO L443 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2019-11-07 00:33:23,632 INFO L443 ceAbstractionStarter]: For program point L10(lines 10 12) no Hoare annotation was computed. [2019-11-07 00:33:23,632 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 8 14) no Hoare annotation was computed. [2019-11-07 00:33:23,632 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 8 14) no Hoare annotation was computed. [2019-11-07 00:33:23,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:33:23 BoogieIcfgContainer [2019-11-07 00:33:23,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:33:23,646 INFO L168 Benchmark]: Toolchain (without parser) took 4596.35 ms. Allocated memory was 141.6 MB in the beginning and 231.7 MB in the end (delta: 90.2 MB). Free memory was 104.8 MB in the beginning and 168.4 MB in the end (delta: -63.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:23,647 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:33:23,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.77 ms. Allocated memory is still 141.6 MB. Free memory was 104.6 MB in the beginning and 94.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:23,648 INFO L168 Benchmark]: Boogie Preprocessor took 122.32 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 94.8 MB in the beginning and 182.8 MB in the end (delta: -87.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:23,649 INFO L168 Benchmark]: RCFGBuilder took 2337.19 ms. Allocated memory is still 205.0 MB. Free memory was 182.8 MB in the beginning and 168.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:23,650 INFO L168 Benchmark]: TraceAbstraction took 1891.07 ms. Allocated memory was 205.0 MB in the beginning and 231.7 MB in the end (delta: 26.7 MB). Free memory was 168.8 MB in the beginning and 168.4 MB in the end (delta: 325.9 kB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:23,654 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 233.77 ms. Allocated memory is still 141.6 MB. Free memory was 104.6 MB in the beginning and 94.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.32 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 94.8 MB in the beginning and 182.8 MB in the end (delta: -87.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2337.19 ms. Allocated memory is still 205.0 MB. Free memory was 182.8 MB in the beginning and 168.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1891.07 ms. Allocated memory was 205.0 MB in the beginning and 231.7 MB in the end (delta: 26.7 MB). Free memory was 168.8 MB in the beginning and 168.4 MB in the end (delta: 325.9 kB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: 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: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 4 SDslu, 16 SDs, 0 SdLazy, 12 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 9 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 3739 SizeOfPredicates, 10 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 117, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.95, AVG_VARS_REMOVED_DURING_WEAKENING: 0.6666666666666666, AVG_WEAKENED_CONJUNCTS: 0.4, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...