java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-examples/standard_partition_original_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:24,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:24,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:24,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:24,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:24,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:24,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:24,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:24,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:24,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:24,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:24,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:24,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:24,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:24,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:24,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:24,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:24,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:24,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:24,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:24,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:24,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:24,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:24,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:24,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:24,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:24,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:24,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:24,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:53:24,305 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:24,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:24,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:24,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:24,307 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:24,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:24,308 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:24,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:24,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:24,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:24,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:24,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:24,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:24,309 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:24,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:24,309 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:24,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:24,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:24,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:24,310 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:24,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:24,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:24,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:24,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:24,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:24,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:24,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:24,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:24,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 19:53:24,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:24,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:24,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:24,616 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:24,616 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:24,617 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_partition_original_ground.i [2019-10-13 19:53:24,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/769a29323/215d9b31603e415ead1220378bfa85b1/FLAGca16aa3d6 [2019-10-13 19:53:25,132 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:25,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_partition_original_ground.i [2019-10-13 19:53:25,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/769a29323/215d9b31603e415ead1220378bfa85b1/FLAGca16aa3d6 [2019-10-13 19:53:25,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/769a29323/215d9b31603e415ead1220378bfa85b1 [2019-10-13 19:53:25,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:25,577 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:25,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:25,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:25,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:25,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:25,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8b9bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25, skipping insertion in model container [2019-10-13 19:53:25,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:25,594 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:25,614 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:25,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:25,849 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:25,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:25,997 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:25,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25 WrapperNode [2019-10-13 19:53:25,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:25,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:25,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:25,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:26,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:26,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:26,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:26,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:26,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:26,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:26,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:26,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:26,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:26,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:26,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:26,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:53:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:26,424 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:26,425 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 19:53:26,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:26 BoogieIcfgContainer [2019-10-13 19:53:26,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:26,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:26,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:26,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:26,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:25" (1/3) ... [2019-10-13 19:53:26,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b221769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:26, skipping insertion in model container [2019-10-13 19:53:26,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (2/3) ... [2019-10-13 19:53:26,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b221769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:26, skipping insertion in model container [2019-10-13 19:53:26,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:26" (3/3) ... [2019-10-13 19:53:26,435 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_partition_original_ground.i [2019-10-13 19:53:26,446 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:26,454 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:26,464 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:26,490 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:26,490 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:26,491 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:26,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:26,491 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:26,491 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:26,491 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:26,491 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:26,507 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-10-13 19:53:26,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 19:53:26,512 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:26,513 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:26,515 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:26,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1902154591, now seen corresponding path program 1 times [2019-10-13 19:53:26,529 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:26,530 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384011377] [2019-10-13 19:53:26,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:26,661 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384011377] [2019-10-13 19:53:26,661 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:26,662 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:26,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727456083] [2019-10-13 19:53:26,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:26,668 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:26,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:26,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:26,686 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-10-13 19:53:26,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:26,711 INFO L93 Difference]: Finished difference Result 56 states and 76 transitions. [2019-10-13 19:53:26,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:26,713 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-13 19:53:26,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:26,720 INFO L225 Difference]: With dead ends: 56 [2019-10-13 19:53:26,720 INFO L226 Difference]: Without dead ends: 27 [2019-10-13 19:53:26,724 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:26,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-13 19:53:26,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-10-13 19:53:26,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-13 19:53:26,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2019-10-13 19:53:26,762 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 14 [2019-10-13 19:53:26,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:26,762 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2019-10-13 19:53:26,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2019-10-13 19:53:26,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 19:53:26,764 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:26,764 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:26,764 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:26,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:26,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1137378726, now seen corresponding path program 1 times [2019-10-13 19:53:26,766 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:26,766 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727949558] [2019-10-13 19:53:26,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:26,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:26,828 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727949558] [2019-10-13 19:53:26,829 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:26,829 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:26,829 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965883810] [2019-10-13 19:53:26,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:26,831 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:26,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:26,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:26,832 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 3 states. [2019-10-13 19:53:26,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:26,865 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2019-10-13 19:53:26,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:26,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-13 19:53:26,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:26,867 INFO L225 Difference]: With dead ends: 48 [2019-10-13 19:53:26,868 INFO L226 Difference]: Without dead ends: 29 [2019-10-13 19:53:26,870 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-13 19:53:26,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-10-13 19:53:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-13 19:53:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-10-13 19:53:26,884 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 14 [2019-10-13 19:53:26,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:26,885 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-10-13 19:53:26,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:26,885 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-10-13 19:53:26,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 19:53:26,886 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:26,887 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:26,887 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:26,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:26,888 INFO L82 PathProgramCache]: Analyzing trace with hash -62722692, now seen corresponding path program 1 times [2019-10-13 19:53:26,888 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:26,888 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057531197] [2019-10-13 19:53:26,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,891 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:26,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:26,967 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057531197] [2019-10-13 19:53:26,967 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:26,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:26,969 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121623840] [2019-10-13 19:53:26,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:26,970 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:26,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:26,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:26,971 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2019-10-13 19:53:26,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:26,997 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2019-10-13 19:53:26,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:26,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-13 19:53:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:26,999 INFO L225 Difference]: With dead ends: 47 [2019-10-13 19:53:26,999 INFO L226 Difference]: Without dead ends: 31 [2019-10-13 19:53:27,000 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:27,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-13 19:53:27,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2019-10-13 19:53:27,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-13 19:53:27,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-10-13 19:53:27,007 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 16 [2019-10-13 19:53:27,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:27,007 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-10-13 19:53:27,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:27,007 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-10-13 19:53:27,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 19:53:27,008 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:27,008 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:27,009 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:27,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:27,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1291417548, now seen corresponding path program 1 times [2019-10-13 19:53:27,010 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:27,010 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778841511] [2019-10-13 19:53:27,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:27,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:27,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:27,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:27,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778841511] [2019-10-13 19:53:27,069 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716641782] [2019-10-13 19:53:27,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:27,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:27,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:27,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:27,175 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:27,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:27,225 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1167151642] [2019-10-13 19:53:27,238 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 20 [2019-10-13 19:53:27,282 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:27,283 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:27,338 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:27,339 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 28 variables. [2019-10-13 19:53:27,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:27,344 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:27,384 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:27,384 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:27,386 INFO L553 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2019-10-13 19:53:27,386 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:27,387 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:27,387 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 8 [2019-10-13 19:53:27,387 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86779375] [2019-10-13 19:53:27,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:27,389 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:27,389 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:27,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:27,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:27,390 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 2 states. [2019-10-13 19:53:27,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:27,392 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-10-13 19:53:27,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:27,393 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-13 19:53:27,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:27,393 INFO L225 Difference]: With dead ends: 29 [2019-10-13 19:53:27,393 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:27,394 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:27,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:27,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:27,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:27,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:27,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-10-13 19:53:27,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:27,396 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:27,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:27,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:27,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:27,601 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:27,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:27,649 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:27,650 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:27,650 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:27,651 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:27,651 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:27,651 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:27,651 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:27,651 INFO L439 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: false [2019-10-13 19:53:27,652 INFO L443 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-10-13 19:53:27,652 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 5 37) no Hoare annotation was computed. [2019-10-13 19:53:27,652 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 26) no Hoare annotation was computed. [2019-10-13 19:53:27,652 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 26) no Hoare annotation was computed. [2019-10-13 19:53:27,652 INFO L443 ceAbstractionStarter]: For program point L33-2(lines 33 35) no Hoare annotation was computed. [2019-10-13 19:53:27,652 INFO L439 ceAbstractionStarter]: At program point L33-3(lines 33 35) the Hoare annotation is: false [2019-10-13 19:53:27,653 INFO L443 ceAbstractionStarter]: For program point L33-4(lines 33 35) no Hoare annotation was computed. [2019-10-13 19:53:27,653 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 5 37) no Hoare annotation was computed. [2019-10-13 19:53:27,653 INFO L443 ceAbstractionStarter]: For program point L13-2(lines 13 16) no Hoare annotation was computed. [2019-10-13 19:53:27,653 INFO L439 ceAbstractionStarter]: At program point L13-3(lines 13 16) the Hoare annotation is: false [2019-10-13 19:53:27,653 INFO L439 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: false [2019-10-13 19:53:27,654 INFO L443 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2019-10-13 19:53:27,654 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 5 37) the Hoare annotation is: true [2019-10-13 19:53:27,654 INFO L443 ceAbstractionStarter]: For program point L30-2(lines 30 32) no Hoare annotation was computed. [2019-10-13 19:53:27,654 INFO L439 ceAbstractionStarter]: At program point L30-3(lines 30 32) the Hoare annotation is: false [2019-10-13 19:53:27,654 INFO L443 ceAbstractionStarter]: For program point L30-4(lines 30 32) no Hoare annotation was computed. [2019-10-13 19:53:27,654 INFO L443 ceAbstractionStarter]: For program point L18-1(lines 5 37) no Hoare annotation was computed. [2019-10-13 19:53:27,655 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 28) no Hoare annotation was computed. [2019-10-13 19:53:27,655 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:27,655 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:27,655 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:27,656 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:27,656 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:27,657 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:27,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:27 BoogieIcfgContainer [2019-10-13 19:53:27,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:27,673 INFO L168 Benchmark]: Toolchain (without parser) took 2093.37 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.8 MB in the beginning and 96.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,676 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.74 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 182.8 MB in the end (delta: -80.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,680 INFO L168 Benchmark]: Boogie Preprocessor took 44.57 ms. Allocated memory is still 203.4 MB. Free memory was 182.8 MB in the beginning and 180.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,687 INFO L168 Benchmark]: RCFGBuilder took 383.29 ms. Allocated memory is still 203.4 MB. Free memory was 180.5 MB in the beginning and 164.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,687 INFO L168 Benchmark]: TraceAbstraction took 1241.11 ms. Allocated memory is still 203.4 MB. Free memory was 164.0 MB in the beginning and 96.5 MB in the end (delta: 67.5 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,700 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 419.74 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 182.8 MB in the end (delta: -80.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.57 ms. Allocated memory is still 203.4 MB. Free memory was 182.8 MB in the beginning and 180.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 383.29 ms. Allocated memory is still 203.4 MB. Free memory was 180.5 MB in the beginning and 164.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1241.11 ms. Allocated memory is still 203.4 MB. Free memory was 164.0 MB in the beginning and 96.5 MB in the end (delta: 67.5 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 32 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 4 SDslu, 51 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 10 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 2149 SizeOfPredicates, 1 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 110, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.8611111111111112, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0555555555555556, AVG_WEAKENED_CONJUNCTS: 0.3333333333333333, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...