java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loop-acceleration/array_3-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:05:25,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:05:25,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:05:25,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:05:25,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:05:25,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:05:25,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:05:25,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:05:25,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:05:25,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:05:25,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:05:25,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:05:25,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:05:25,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:05:25,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:05:25,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:05:25,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:05:25,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:05:25,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:05:25,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:05:25,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:05:25,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:05:25,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:05:25,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:05:26,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:05:26,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:05:26,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:05:26,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:05:26,011 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 21:05:26,025 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:05:26,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:05:26,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:05:26,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:05:26,027 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:05:26,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:05:26,028 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:05:26,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:05:26,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:05:26,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:05:26,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:05:26,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:05:26,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:05:26,029 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:05:26,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:05:26,030 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:05:26,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:05:26,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:05:26,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:05:26,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:05:26,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:05:26,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:05:26,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:05:26,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:05:26,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:05:26,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:05:26,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:05:26,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:05:26,032 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 21:05:26,354 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:05:26,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:05:26,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:05:26,381 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:05:26,381 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:05:26,382 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_3-1.i [2019-10-13 21:05:26,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bf16bbf3/4ac115bcda594a9d8e7183d9582b3181/FLAGc5f4f8278 [2019-10-13 21:05:26,892 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:05:26,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_3-1.i [2019-10-13 21:05:26,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bf16bbf3/4ac115bcda594a9d8e7183d9582b3181/FLAGc5f4f8278 [2019-10-13 21:05:27,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bf16bbf3/4ac115bcda594a9d8e7183d9582b3181 [2019-10-13 21:05:27,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:05:27,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:05:27,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:27,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:05:27,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:05:27,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:27" (1/1) ... [2019-10-13 21:05:27,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760969a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27, skipping insertion in model container [2019-10-13 21:05:27,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:27" (1/1) ... [2019-10-13 21:05:27,338 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:05:27,361 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:05:27,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:27,557 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:05:27,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:27,594 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:05:27,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27 WrapperNode [2019-10-13 21:05:27,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:27,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:05:27,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:05:27,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:05:27,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27" (1/1) ... [2019-10-13 21:05:27,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27" (1/1) ... [2019-10-13 21:05:27,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27" (1/1) ... [2019-10-13 21:05:27,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27" (1/1) ... [2019-10-13 21:05:27,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27" (1/1) ... [2019-10-13 21:05:27,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27" (1/1) ... [2019-10-13 21:05:27,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27" (1/1) ... [2019-10-13 21:05:27,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:05:27,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:05:27,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:05:27,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:05:27,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27" (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 21:05:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:05:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:05:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:05:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:05:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:05:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:05:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:05:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:05:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:05:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:05:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:05:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:05:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:05:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:05:27,999 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:05:27,999 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 21:05:28,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:28 BoogieIcfgContainer [2019-10-13 21:05:28,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:05:28,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:05:28,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:05:28,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:05:28,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:05:27" (1/3) ... [2019-10-13 21:05:28,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4fb6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:28, skipping insertion in model container [2019-10-13 21:05:28,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:27" (2/3) ... [2019-10-13 21:05:28,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4fb6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:28, skipping insertion in model container [2019-10-13 21:05:28,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:28" (3/3) ... [2019-10-13 21:05:28,032 INFO L109 eAbstractionObserver]: Analyzing ICFG array_3-1.i [2019-10-13 21:05:28,046 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:05:28,054 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:05:28,067 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:05:28,094 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:05:28,094 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:05:28,094 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:05:28,094 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:05:28,094 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:05:28,095 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:05:28,095 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:05:28,095 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:05:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-10-13 21:05:28,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 21:05:28,121 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:28,122 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:28,124 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:28,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:28,130 INFO L82 PathProgramCache]: Analyzing trace with hash -413900697, now seen corresponding path program 1 times [2019-10-13 21:05:28,140 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:28,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711345254] [2019-10-13 21:05:28,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:28,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:28,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:28,258 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 21:05:28,259 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711345254] [2019-10-13 21:05:28,259 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:28,260 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:05:28,260 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882363268] [2019-10-13 21:05:28,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:05:28,265 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:28,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:05:28,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:28,278 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-10-13 21:05:28,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:28,296 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2019-10-13 21:05:28,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:05:28,297 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-13 21:05:28,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:28,305 INFO L225 Difference]: With dead ends: 42 [2019-10-13 21:05:28,305 INFO L226 Difference]: Without dead ends: 18 [2019-10-13 21:05:28,309 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 21:05:28,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-13 21:05:28,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-13 21:05:28,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-13 21:05:28,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-10-13 21:05:28,347 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2019-10-13 21:05:28,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:28,347 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-10-13 21:05:28,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:05:28,348 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-10-13 21:05:28,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 21:05:28,349 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:28,349 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:28,349 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:28,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:28,350 INFO L82 PathProgramCache]: Analyzing trace with hash 2053026861, now seen corresponding path program 1 times [2019-10-13 21:05:28,350 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:28,350 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231303637] [2019-10-13 21:05:28,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:28,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:28,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:28,438 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 21:05:28,438 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231303637] [2019-10-13 21:05:28,439 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:28,439 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:05:28,441 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379886367] [2019-10-13 21:05:28,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:05:28,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:28,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:05:28,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:05:28,444 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2019-10-13 21:05:28,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:28,508 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2019-10-13 21:05:28,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:05:28,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-13 21:05:28,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:28,512 INFO L225 Difference]: With dead ends: 35 [2019-10-13 21:05:28,513 INFO L226 Difference]: Without dead ends: 25 [2019-10-13 21:05:28,514 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 21:05:28,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-13 21:05:28,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2019-10-13 21:05:28,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-13 21:05:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-10-13 21:05:28,524 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2019-10-13 21:05:28,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:28,524 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-10-13 21:05:28,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:05:28,524 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-10-13 21:05:28,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 21:05:28,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:28,526 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:28,526 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:28,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:28,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1766388751, now seen corresponding path program 1 times [2019-10-13 21:05:28,527 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:28,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340347829] [2019-10-13 21:05:28,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:28,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:28,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:28,630 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 21:05:28,631 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340347829] [2019-10-13 21:05:28,631 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:28,631 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:05:28,632 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339499599] [2019-10-13 21:05:28,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:05:28,633 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:28,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:05:28,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:05:28,634 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 5 states. [2019-10-13 21:05:28,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:28,707 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-10-13 21:05:28,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:05:28,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-13 21:05:28,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:28,709 INFO L225 Difference]: With dead ends: 29 [2019-10-13 21:05:28,709 INFO L226 Difference]: Without dead ends: 24 [2019-10-13 21:05:28,710 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:05:28,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-13 21:05:28,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2019-10-13 21:05:28,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-13 21:05:28,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-10-13 21:05:28,716 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 16 [2019-10-13 21:05:28,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:28,716 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-10-13 21:05:28,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:05:28,717 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-10-13 21:05:28,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-13 21:05:28,718 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:28,718 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:28,718 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:28,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:28,719 INFO L82 PathProgramCache]: Analyzing trace with hash -955555818, now seen corresponding path program 1 times [2019-10-13 21:05:28,719 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:28,719 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343249963] [2019-10-13 21:05:28,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:28,720 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:28,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:05:28,803 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343249963] [2019-10-13 21:05:28,803 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:28,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:05:28,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850552219] [2019-10-13 21:05:28,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:05:28,805 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:28,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:05:28,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:05:28,810 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2019-10-13 21:05:28,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:28,899 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2019-10-13 21:05:28,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:05:28,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-10-13 21:05:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:28,900 INFO L225 Difference]: With dead ends: 35 [2019-10-13 21:05:28,900 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:05:28,902 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:05:28,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:05:28,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:05:28,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:05:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:05:28,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-10-13 21:05:28,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:28,903 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:05:28,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:05:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:05:28,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:05:28,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:05:28,963 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:28,963 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:28,964 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:28,964 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:28,964 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:05:28,964 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:28,964 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:28,964 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 23) no Hoare annotation was computed. [2019-10-13 21:05:28,965 INFO L443 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-10-13 21:05:28,965 INFO L443 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-10-13 21:05:28,965 INFO L439 ceAbstractionStarter]: At program point L17-4(lines 17 21) the Hoare annotation is: (<= main_~i~0 1023) [2019-10-13 21:05:28,965 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 9 23) no Hoare annotation was computed. [2019-10-13 21:05:28,965 INFO L439 ceAbstractionStarter]: At program point L17-5(lines 17 21) the Hoare annotation is: (<= main_~i~0 1023) [2019-10-13 21:05:28,965 INFO L443 ceAbstractionStarter]: For program point L13-2(lines 13 15) no Hoare annotation was computed. [2019-10-13 21:05:28,967 INFO L446 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: true [2019-10-13 21:05:28,967 INFO L443 ceAbstractionStarter]: For program point L13-4(lines 13 15) no Hoare annotation was computed. [2019-10-13 21:05:28,968 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 23) the Hoare annotation is: true [2019-10-13 21:05:28,968 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-10-13 21:05:28,968 INFO L443 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2019-10-13 21:05:28,968 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 21:05:28,968 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 21:05:28,968 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 21:05:28,969 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 21:05:28,969 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 21:05:28,969 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 21:05:28,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:05:28 BoogieIcfgContainer [2019-10-13 21:05:28,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:05:28,994 INFO L168 Benchmark]: Toolchain (without parser) took 1669.00 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 100.2 MB in the beginning and 107.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 50.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:28,995 INFO L168 Benchmark]: CDTParser took 1.22 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:05:28,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.23 ms. Allocated memory is still 142.6 MB. Free memory was 100.0 MB in the beginning and 90.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:29,000 INFO L168 Benchmark]: Boogie Preprocessor took 122.57 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 90.3 MB in the beginning and 178.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:29,001 INFO L168 Benchmark]: RCFGBuilder took 282.81 ms. Allocated memory is still 200.3 MB. Free memory was 178.4 MB in the beginning and 164.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:29,008 INFO L168 Benchmark]: TraceAbstraction took 979.48 ms. Allocated memory is still 200.3 MB. Free memory was 163.7 MB in the beginning and 107.2 MB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:29,015 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 272.23 ms. Allocated memory is still 142.6 MB. Free memory was 100.0 MB in the beginning and 90.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.57 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 90.3 MB in the beginning and 178.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 282.81 ms. Allocated memory is still 200.3 MB. Free memory was 178.4 MB in the beginning and 164.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 979.48 ms. Allocated memory is still 200.3 MB. Free memory was 163.7 MB in the beginning and 107.2 MB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 17]: Loop Invariant Derived loop invariant: i <= 1023 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 18 SDslu, 82 SDs, 0 SdLazy, 69 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 12 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 1371 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...