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_two_index_05.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:28,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:28,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:28,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:28,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:28,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:28,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:28,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:28,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:28,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:28,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:28,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:28,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:28,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:28,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:28,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:28,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:28,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:28,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:28,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:28,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:28,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:28,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:28,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:28,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:52:28,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:52:28,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:52:28,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:52:28,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:52:28,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:52:28,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:52:28,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:52:28,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:52:28,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:28,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:28,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:28,322 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 [2019-10-14 23:52:28,335 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:28,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:28,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:28,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:28,337 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:28,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:28,340 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:28,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:28,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:28,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:28,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:28,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:28,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:28,342 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:28,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:28,342 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:28,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:28,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:28,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:28,343 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:28,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:28,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:28,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:28,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:28,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:28,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:28,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:28,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:28,345 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 [2019-10-14 23:52:28,624 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:28,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:28,644 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:28,645 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:28,646 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:28,646 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_two_index_05.i [2019-10-14 23:52:28,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08029b01/2790733ed1f04aa4a61b8ba087ade8b7/FLAGeddceb5f8 [2019-10-14 23:52:29,132 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:29,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_two_index_05.i [2019-10-14 23:52:29,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08029b01/2790733ed1f04aa4a61b8ba087ade8b7/FLAGeddceb5f8 [2019-10-14 23:52:29,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08029b01/2790733ed1f04aa4a61b8ba087ade8b7 [2019-10-14 23:52:29,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:29,538 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:29,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:29,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:29,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:29,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:29" (1/1) ... [2019-10-14 23:52:29,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3ea2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29, skipping insertion in model container [2019-10-14 23:52:29,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:29" (1/1) ... [2019-10-14 23:52:29,554 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:29,570 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:29,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:29,773 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:29,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:29,822 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:29,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29 WrapperNode [2019-10-14 23:52:29,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:29,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:29,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:29,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:29,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29" (1/1) ... [2019-10-14 23:52:29,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29" (1/1) ... [2019-10-14 23:52:29,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29" (1/1) ... [2019-10-14 23:52:29,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29" (1/1) ... [2019-10-14 23:52:29,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29" (1/1) ... [2019-10-14 23:52:29,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29" (1/1) ... [2019-10-14 23:52:29,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29" (1/1) ... [2019-10-14 23:52:29,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:29,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:29,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:29,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:29,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29" (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 [2019-10-14 23:52:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:52:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:30,273 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:30,273 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-14 23:52:30,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:30 BoogieIcfgContainer [2019-10-14 23:52:30,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:30,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:30,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:30,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:30,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:29" (1/3) ... [2019-10-14 23:52:30,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8138a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:30, skipping insertion in model container [2019-10-14 23:52:30,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:29" (2/3) ... [2019-10-14 23:52:30,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8138a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:30, skipping insertion in model container [2019-10-14 23:52:30,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:30" (3/3) ... [2019-10-14 23:52:30,284 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_two_index_05.i [2019-10-14 23:52:30,297 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:30,304 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:30,316 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:30,343 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:30,343 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:30,343 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:30,344 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:30,344 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:30,344 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:30,344 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:30,344 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:30,359 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-10-14 23:52:30,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-14 23:52:30,364 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:30,365 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:30,367 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:30,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:30,372 INFO L82 PathProgramCache]: Analyzing trace with hash -2029643862, now seen corresponding path program 1 times [2019-10-14 23:52:30,379 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:30,379 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986626754] [2019-10-14 23:52:30,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:30,380 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:30,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:30,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:30,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986626754] [2019-10-14 23:52:30,497 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:30,497 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:52:30,497 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518371107] [2019-10-14 23:52:30,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:30,503 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:30,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:30,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:30,520 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-10-14 23:52:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:30,543 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-10-14 23:52:30,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:30,544 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-14 23:52:30,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:30,552 INFO L225 Difference]: With dead ends: 41 [2019-10-14 23:52:30,552 INFO L226 Difference]: Without dead ends: 19 [2019-10-14 23:52:30,556 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 [2019-10-14 23:52:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-14 23:52:30,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-14 23:52:30,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-14 23:52:30,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-14 23:52:30,593 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2019-10-14 23:52:30,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:30,594 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-14 23:52:30,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-14 23:52:30,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-14 23:52:30,595 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:30,595 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:30,595 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:30,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:30,596 INFO L82 PathProgramCache]: Analyzing trace with hash 905206694, now seen corresponding path program 1 times [2019-10-14 23:52:30,596 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:30,596 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86575828] [2019-10-14 23:52:30,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:30,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:30,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:30,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:30,661 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86575828] [2019-10-14 23:52:30,661 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:30,661 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:52:30,661 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045831150] [2019-10-14 23:52:30,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:52:30,663 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:30,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:52:30,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:30,664 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2019-10-14 23:52:30,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:30,715 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2019-10-14 23:52:30,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:52:30,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-14 23:52:30,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:30,716 INFO L225 Difference]: With dead ends: 32 [2019-10-14 23:52:30,717 INFO L226 Difference]: Without dead ends: 20 [2019-10-14 23:52:30,718 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 [2019-10-14 23:52:30,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-14 23:52:30,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-14 23:52:30,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-14 23:52:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-10-14 23:52:30,723 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2019-10-14 23:52:30,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:30,724 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-10-14 23:52:30,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:52:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-10-14 23:52:30,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:52:30,725 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:30,725 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:30,725 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:30,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:30,726 INFO L82 PathProgramCache]: Analyzing trace with hash -764882998, now seen corresponding path program 1 times [2019-10-14 23:52:30,726 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:30,726 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157153650] [2019-10-14 23:52:30,727 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:30,727 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:30,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:52:30,778 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157153650] [2019-10-14 23:52:30,778 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:30,778 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:52:30,778 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210473412] [2019-10-14 23:52:30,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:52:30,779 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:30,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:52:30,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:30,780 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 3 states. [2019-10-14 23:52:30,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:30,809 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2019-10-14 23:52:30,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:52:30,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-14 23:52:30,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:30,812 INFO L225 Difference]: With dead ends: 34 [2019-10-14 23:52:30,813 INFO L226 Difference]: Without dead ends: 24 [2019-10-14 23:52:30,813 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 [2019-10-14 23:52:30,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-14 23:52:30,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2019-10-14 23:52:30,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-14 23:52:30,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2019-10-14 23:52:30,824 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16 [2019-10-14 23:52:30,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:30,824 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2019-10-14 23:52:30,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:52:30,824 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-10-14 23:52:30,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-14 23:52:30,825 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:30,825 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:30,826 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:30,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:30,826 INFO L82 PathProgramCache]: Analyzing trace with hash -59429947, now seen corresponding path program 1 times [2019-10-14 23:52:30,827 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:30,827 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128423722] [2019-10-14 23:52:30,827 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:30,827 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:30,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:52:30,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128423722] [2019-10-14 23:52:30,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068989664] [2019-10-14 23:52:30,941 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 [2019-10-14 23:52:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:31,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:52:31,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:31,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:52:31,057 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:31,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:52:31,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1922203177] [2019-10-14 23:52:31,118 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18 [2019-10-14 23:52:31,165 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:52:31,166 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:52:31,233 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:52:31,234 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 22 variables. [2019-10-14 23:52:31,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:31,238 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:52:31,277 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-14 23:52:31,277 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:52:31,279 INFO L553 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-10-14 23:52:31,279 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:52:31,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:52:31,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 8 [2019-10-14 23:52:31,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646238055] [2019-10-14 23:52:31,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:31,284 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:31,284 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:52:31,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:31,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:31,285 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 2 states. [2019-10-14 23:52:31,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:31,287 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2019-10-14 23:52:31,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:31,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-10-14 23:52:31,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:31,288 INFO L225 Difference]: With dead ends: 21 [2019-10-14 23:52:31,289 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:52:31,290 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:52:31,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:52:31,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:52:31,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:52:31,291 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-14 23:52:31,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:31,291 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:52:31,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:31,292 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:52:31,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:52:31,495 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:31,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:52:31,522 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:31,523 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:31,523 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:31,523 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:31,523 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:52:31,524 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:31,524 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:31,524 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: false [2019-10-14 23:52:31,524 INFO L443 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-10-14 23:52:31,524 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 32) no Hoare annotation was computed. [2019-10-14 23:52:31,524 INFO L439 ceAbstractionStarter]: At program point L25-2(lines 25 30) the Hoare annotation is: false [2019-10-14 23:52:31,525 INFO L443 ceAbstractionStarter]: For program point L25-3(lines 25 30) no Hoare annotation was computed. [2019-10-14 23:52:31,525 INFO L439 ceAbstractionStarter]: At program point L17-2(lines 17 22) the Hoare annotation is: false [2019-10-14 23:52:31,525 INFO L443 ceAbstractionStarter]: For program point L17-3(lines 17 22) no Hoare annotation was computed. [2019-10-14 23:52:31,525 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 32) no Hoare annotation was computed. [2019-10-14 23:52:31,525 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 32) the Hoare annotation is: true [2019-10-14 23:52:31,526 INFO L439 ceAbstractionStarter]: At program point L10-2(lines 10 14) the Hoare annotation is: false [2019-10-14 23:52:31,526 INFO L443 ceAbstractionStarter]: For program point L10-3(lines 10 14) no Hoare annotation was computed. [2019-10-14 23:52:31,526 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-14 23:52:31,526 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-14 23:52:31,526 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-14 23:52:31,527 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-14 23:52:31,527 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-14 23:52:31,527 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-14 23:52:31,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:31 BoogieIcfgContainer [2019-10-14 23:52:31,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:52:31,538 INFO L168 Benchmark]: Toolchain (without parser) took 1998.58 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 104.6 MB in the beginning and 101.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:31,538 INFO L168 Benchmark]: CDTParser took 1.18 ms. Allocated memory is still 146.3 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-14 23:52:31,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.65 ms. Allocated memory is still 146.3 MB. Free memory was 104.2 MB in the beginning and 94.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:31,540 INFO L168 Benchmark]: Boogie Preprocessor took 142.33 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 94.1 MB in the beginning and 180.2 MB in the end (delta: -86.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:31,541 INFO L168 Benchmark]: RCFGBuilder took 309.28 ms. Allocated memory is still 202.4 MB. Free memory was 180.2 MB in the beginning and 165.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:31,542 INFO L168 Benchmark]: TraceAbstraction took 1258.20 ms. Allocated memory is still 202.4 MB. Free memory was 164.9 MB in the beginning and 101.0 MB in the end (delta: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:31,546 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18 ms. Allocated memory is still 146.3 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.65 ms. Allocated memory is still 146.3 MB. Free memory was 104.2 MB in the beginning and 94.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 142.33 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 94.1 MB in the beginning and 180.2 MB in the end (delta: -86.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 309.28 ms. Allocated memory is still 202.4 MB. Free memory was 180.2 MB in the beginning and 165.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1258.20 ms. Allocated memory is still 202.4 MB. Free memory was 164.9 MB in the beginning and 101.0 MB in the end (delta: 63.9 MB). Peak memory consumption was 63.9 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: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 1 SDslu, 24 SDs, 0 SdLazy, 19 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 9 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 1635 SizeOfPredicates, 1 NumberOfNonLiveVariables, 79 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 121, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.90625, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0, AVG_WEAKENED_CONJUNCTS: 0.375, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...