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_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:04:43,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:04:43,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:04:43,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:04:43,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:04:43,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:04:43,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:04:43,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:04:43,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:04:43,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:04:43,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:04:43,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:04:43,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:04:43,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:04:43,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:04:43,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:04:43,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:04:43,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:04:43,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:04:43,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:04:43,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:04:43,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:04:43,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:04:43,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:04:43,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:04:43,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:04:43,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:04:43,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:04:43,384 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 [2019-10-15 01:04:43,405 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:04:43,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:04:43,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:04:43,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:04:43,407 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:04:43,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:04:43,407 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:04:43,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:04:43,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:04:43,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:04:43,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:04:43,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:04:43,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:04:43,409 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:04:43,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:04:43,409 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:04:43,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:04:43,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:04:43,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:04:43,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:04:43,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:04:43,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:04:43,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:04:43,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:04:43,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:04:43,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:04:43,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:04:43,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:04:43,412 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 [2019-10-15 01:04:43,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:04:43,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:04:43,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:04:43,749 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:04:43,750 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:04:43,750 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i [2019-10-15 01:04:43,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16323e06e/a9bf0b5c467d4fb6a166acac631d6661/FLAGdceb9f64d [2019-10-15 01:04:44,244 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:04:44,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i [2019-10-15 01:04:44,251 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16323e06e/a9bf0b5c467d4fb6a166acac631d6661/FLAGdceb9f64d [2019-10-15 01:04:44,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16323e06e/a9bf0b5c467d4fb6a166acac631d6661 [2019-10-15 01:04:44,651 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:04:44,654 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:04:44,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:04:44,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:04:44,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:04:44,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:04:44" (1/1) ... [2019-10-15 01:04:44,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b193a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44, skipping insertion in model container [2019-10-15 01:04:44,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:04:44" (1/1) ... [2019-10-15 01:04:44,672 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:04:44,692 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:04:44,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:04:44,884 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:04:44,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:04:44,915 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:04:44,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44 WrapperNode [2019-10-15 01:04:44,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:04:44,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:04:44,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:04:44,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:04:45,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44" (1/1) ... [2019-10-15 01:04:45,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44" (1/1) ... [2019-10-15 01:04:45,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44" (1/1) ... [2019-10-15 01:04:45,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44" (1/1) ... [2019-10-15 01:04:45,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44" (1/1) ... [2019-10-15 01:04:45,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44" (1/1) ... [2019-10-15 01:04:45,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44" (1/1) ... [2019-10-15 01:04:45,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:04:45,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:04:45,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:04:45,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:04:45,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44" (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 [2019-10-15 01:04:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:04:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:04:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 01:04:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:04:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:04:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 01:04:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 01:04:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 01:04:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:04:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:04:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:04:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:04:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:04:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:04:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:04:45,344 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:04:45,344 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 01:04:45,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:04:45 BoogieIcfgContainer [2019-10-15 01:04:45,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:04:45,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:04:45,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:04:45,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:04:45,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:04:44" (1/3) ... [2019-10-15 01:04:45,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700cea68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:04:45, skipping insertion in model container [2019-10-15 01:04:45,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:44" (2/3) ... [2019-10-15 01:04:45,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700cea68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:04:45, skipping insertion in model container [2019-10-15 01:04:45,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:04:45" (3/3) ... [2019-10-15 01:04:45,354 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_2.i [2019-10-15 01:04:45,369 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:04:45,376 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:04:45,388 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:04:45,413 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:04:45,413 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:04:45,414 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:04:45,414 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:04:45,414 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:04:45,414 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:04:45,414 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:04:45,414 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:04:45,430 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-10-15 01:04:45,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 01:04:45,434 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:04:45,435 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:04:45,437 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:04:45,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:04:45,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1821336840, now seen corresponding path program 1 times [2019-10-15 01:04:45,449 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:04:45,450 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213390337] [2019-10-15 01:04:45,450 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:45,450 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:45,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:04:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:04:45,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:45,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213390337] [2019-10-15 01:04:45,564 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:04:45,564 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:04:45,564 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370536656] [2019-10-15 01:04:45,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:04:45,569 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:04:45,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:04:45,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:04:45,581 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-10-15 01:04:45,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:04:45,604 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-10-15 01:04:45,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:04:45,605 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-15 01:04:45,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:04:45,613 INFO L225 Difference]: With dead ends: 40 [2019-10-15 01:04:45,613 INFO L226 Difference]: Without dead ends: 19 [2019-10-15 01:04:45,616 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 [2019-10-15 01:04:45,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-15 01:04:45,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-15 01:04:45,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 01:04:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-10-15 01:04:45,651 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 13 [2019-10-15 01:04:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:04:45,652 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-10-15 01:04:45,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:04:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-10-15 01:04:45,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 01:04:45,653 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:04:45,653 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:04:45,653 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:04:45,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:04:45,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1443575666, now seen corresponding path program 1 times [2019-10-15 01:04:45,654 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:04:45,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283568447] [2019-10-15 01:04:45,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:45,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:45,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:04:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:04:45,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:45,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283568447] [2019-10-15 01:04:45,725 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:04:45,725 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:04:45,726 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392833888] [2019-10-15 01:04:45,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:04:45,728 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:04:45,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:04:45,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:04:45,729 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 3 states. [2019-10-15 01:04:45,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:04:45,775 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2019-10-15 01:04:45,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:04:45,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-15 01:04:45,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:04:45,782 INFO L225 Difference]: With dead ends: 36 [2019-10-15 01:04:45,782 INFO L226 Difference]: Without dead ends: 25 [2019-10-15 01:04:45,783 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 [2019-10-15 01:04:45,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-15 01:04:45,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2019-10-15 01:04:45,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-15 01:04:45,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-10-15 01:04:45,793 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2019-10-15 01:04:45,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:04:45,794 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-10-15 01:04:45,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:04:45,794 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-10-15 01:04:45,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 01:04:45,795 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:04:45,795 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:04:45,796 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:04:45,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:04:45,796 INFO L82 PathProgramCache]: Analyzing trace with hash 31729808, now seen corresponding path program 1 times [2019-10-15 01:04:45,796 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:04:45,797 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078124912] [2019-10-15 01:04:45,797 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:45,797 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:45,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:04:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:04:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:45,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078124912] [2019-10-15 01:04:45,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625270106] [2019-10-15 01:04:45,947 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 [2019-10-15 01:04:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:04:45,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-15 01:04:46,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:04:46,070 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 [2019-10-15 01:04:46,071 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:04:46,086 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:04:46,088 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:04:46,088 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2019-10-15 01:04:46,127 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:04:46,143 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 01:04:46,145 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 01:04:46,147 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2019-10-15 01:04:46,148 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:04:46,162 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 01:04:46,162 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:04:46,177 INFO L567 ElimStorePlain]: treesize reduction 10, result has 47.4 percent of original size [2019-10-15 01:04:46,178 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:04:46,178 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:75, output treesize:9 [2019-10-15 01:04:46,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:04:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:46,218 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:04:46,264 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:04:46,314 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:04:46,337 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 39 treesize of output 37 [2019-10-15 01:04:46,364 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 [2019-10-15 01:04:46,366 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-10-15 01:04:46,386 INFO L567 ElimStorePlain]: treesize reduction 12, result has 66.7 percent of original size [2019-10-15 01:04:46,387 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:04:46,417 INFO L567 ElimStorePlain]: treesize reduction 46, result has 34.3 percent of original size [2019-10-15 01:04:46,418 INFO L464 ElimStorePlain]: Eliminatee |#memory_int| vanished before elimination [2019-10-15 01:04:46,419 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-15 01:04:46,419 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:79, output treesize:24 [2019-10-15 01:04:47,380 WARN L191 SmtUtils]: Spent 933.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-10-15 01:04:47,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:47,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [2024962302] [2019-10-15 01:04:47,400 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 16 [2019-10-15 01:04:47,426 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:04:47,426 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:04:47,475 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:04:47,477 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 19 variables. [2019-10-15 01:04:47,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:04:47,479 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:04:47,508 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 01:04:47,509 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:04:47,510 INFO L553 sIntCurrentIteration]: We unified 14 AI predicates to 14 [2019-10-15 01:04:47,510 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:04:47,510 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:04:47,510 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 8, 8] total 14 [2019-10-15 01:04:47,511 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760747595] [2019-10-15 01:04:47,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:04:47,512 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:04:47,512 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:04:47,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:04:47,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:04:47,512 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 2 states. [2019-10-15 01:04:47,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:04:47,514 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-10-15 01:04:47,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:04:47,515 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-15 01:04:47,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:04:47,515 INFO L225 Difference]: With dead ends: 20 [2019-10-15 01:04:47,515 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:04:47,516 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:04:47,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:04:47,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:04:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:04:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:04:47,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-10-15 01:04:47,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:04:47,517 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:04:47,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:04:47,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:04:47,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:04:47,719 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:04:47,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:04:47,741 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:04:47,742 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:04:47,742 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:04:47,742 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:04:47,742 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:04:47,742 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:04:47,742 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:04:47,743 INFO L439 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: false [2019-10-15 01:04:47,743 INFO L443 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-10-15 01:04:47,743 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 19 34) no Hoare annotation was computed. [2019-10-15 01:04:47,743 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 19 34) no Hoare annotation was computed. [2019-10-15 01:04:47,743 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 19 34) the Hoare annotation is: true [2019-10-15 01:04:47,743 INFO L443 ceAbstractionStarter]: For program point L30-2(lines 30 32) no Hoare annotation was computed. [2019-10-15 01:04:47,744 INFO L439 ceAbstractionStarter]: At program point L30-3(lines 30 32) the Hoare annotation is: false [2019-10-15 01:04:47,744 INFO L443 ceAbstractionStarter]: For program point L30-4(lines 30 32) no Hoare annotation was computed. [2019-10-15 01:04:47,744 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2019-10-15 01:04:47,744 INFO L439 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: false [2019-10-15 01:04:47,744 INFO L443 ceAbstractionStarter]: For program point L24-4(lines 24 28) no Hoare annotation was computed. [2019-10-15 01:04:47,744 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-10-15 01:04:47,745 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2019-10-15 01:04:47,745 INFO L443 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2019-10-15 01:04:47,745 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2019-10-15 01:04:47,745 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2019-10-15 01:04:47,745 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2019-10-15 01:04:47,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:04:47 BoogieIcfgContainer [2019-10-15 01:04:47,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:04:47,755 INFO L168 Benchmark]: Toolchain (without parser) took 3100.79 ms. Allocated memory was 138.9 MB in the beginning and 234.9 MB in the end (delta: 95.9 MB). Free memory was 102.7 MB in the beginning and 188.0 MB in the end (delta: -85.3 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,756 INFO L168 Benchmark]: CDTParser took 1.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.73 ms. Allocated memory is still 138.9 MB. Free memory was 102.5 MB in the beginning and 92.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,758 INFO L168 Benchmark]: Boogie Preprocessor took 112.56 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 92.1 MB in the beginning and 179.6 MB in the end (delta: -87.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,758 INFO L168 Benchmark]: RCFGBuilder took 316.73 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 166.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,759 INFO L168 Benchmark]: TraceAbstraction took 2406.01 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 188.0 MB in the end (delta: -22.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,763 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 259.73 ms. Allocated memory is still 138.9 MB. Free memory was 102.5 MB in the beginning and 92.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.56 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 92.1 MB in the beginning and 179.6 MB in the end (delta: -87.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 316.73 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 166.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2406.01 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 188.0 MB in the end (delta: -22.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 3 SDslu, 13 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 8 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 1 QuantifiedInterpolants, 2888 SizeOfPredicates, 10 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 80, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9464285714285714, AVG_VARS_REMOVED_DURING_WEAKENING: 0.7857142857142857, AVG_WEAKENED_CONJUNCTS: 0.42857142857142855, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...