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_copyInitSum2_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:12,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:12,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:12,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:12,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:12,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:12,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:12,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:12,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:12,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:12,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:12,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:12,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:12,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:12,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:12,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:12,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:12,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:12,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:12,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:12,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:12,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:12,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:12,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:12,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:53:12,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:53:12,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:53:12,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:53:12,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:53:12,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:53:12,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:53:12,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:53:12,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:53:12,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:53:12,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:53:12,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:53:12,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:53:12,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:53:12,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:12,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:12,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:12,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:53:12,250 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:12,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:12,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:12,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:12,254 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:12,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:12,254 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:12,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:12,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:12,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:12,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:12,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:12,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:12,257 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:12,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:12,257 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:12,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:12,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:12,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:12,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:12,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:12,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:12,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:12,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:12,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:12,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:12,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:12,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:12,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 19:53:12,573 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:12,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:12,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:12,591 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:12,591 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:12,592 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copyInitSum2_ground-1.i [2019-10-13 19:53:12,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e62c693/1385a77a736e484c846364f64b2b85ec/FLAGc68161700 [2019-10-13 19:53:13,139 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:13,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copyInitSum2_ground-1.i [2019-10-13 19:53:13,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e62c693/1385a77a736e484c846364f64b2b85ec/FLAGc68161700 [2019-10-13 19:53:13,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e62c693/1385a77a736e484c846364f64b2b85ec [2019-10-13 19:53:13,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:13,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:13,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:13,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:13,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:13,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2022d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13, skipping insertion in model container [2019-10-13 19:53:13,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,513 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:13,531 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:13,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:13,705 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:13,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:13,741 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:13,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13 WrapperNode [2019-10-13 19:53:13,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:13,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:13,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:13,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:13,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:13,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:13,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:13,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:13,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:14,172 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:14,172 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 19:53:14,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:14 BoogieIcfgContainer [2019-10-13 19:53:14,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:14,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:14,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:14,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:14,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:13" (1/3) ... [2019-10-13 19:53:14,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd1b37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:14, skipping insertion in model container [2019-10-13 19:53:14,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13" (2/3) ... [2019-10-13 19:53:14,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd1b37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:14, skipping insertion in model container [2019-10-13 19:53:14,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:14" (3/3) ... [2019-10-13 19:53:14,198 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copyInitSum2_ground-1.i [2019-10-13 19:53:14,229 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:14,246 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:14,273 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:14,319 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:14,320 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:14,320 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:14,320 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:14,320 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:14,320 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:14,320 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:14,321 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:14,336 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-10-13 19:53:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 19:53:14,342 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:14,343 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:14,344 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:14,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:14,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1001985310, now seen corresponding path program 1 times [2019-10-13 19:53:14,357 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:14,357 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871060957] [2019-10-13 19:53:14,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:14,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:14,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:14,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871060957] [2019-10-13 19:53:14,501 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:14,501 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:14,501 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714791269] [2019-10-13 19:53:14,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:14,508 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:14,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:14,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:14,523 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2019-10-13 19:53:14,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:14,552 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2019-10-13 19:53:14,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:14,554 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-10-13 19:53:14,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:14,563 INFO L225 Difference]: With dead ends: 51 [2019-10-13 19:53:14,564 INFO L226 Difference]: Without dead ends: 24 [2019-10-13 19:53:14,568 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:14,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-13 19:53:14,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-13 19:53:14,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-13 19:53:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2019-10-13 19:53:14,615 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2019-10-13 19:53:14,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:14,616 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-10-13 19:53:14,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:14,617 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-10-13 19:53:14,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 19:53:14,618 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:14,618 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:14,619 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:14,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:14,620 INFO L82 PathProgramCache]: Analyzing trace with hash -400143846, now seen corresponding path program 1 times [2019-10-13 19:53:14,620 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:14,620 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753666099] [2019-10-13 19:53:14,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:14,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:14,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:14,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753666099] [2019-10-13 19:53:14,690 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:14,690 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:14,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930568725] [2019-10-13 19:53:14,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:14,696 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:14,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:14,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:14,698 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 3 states. [2019-10-13 19:53:14,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:14,794 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2019-10-13 19:53:14,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:14,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-13 19:53:14,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:14,797 INFO L225 Difference]: With dead ends: 46 [2019-10-13 19:53:14,797 INFO L226 Difference]: Without dead ends: 29 [2019-10-13 19:53:14,799 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:14,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-13 19:53:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-10-13 19:53:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-13 19:53:14,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-10-13 19:53:14,814 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 17 [2019-10-13 19:53:14,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:14,815 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-10-13 19:53:14,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:14,815 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-10-13 19:53:14,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-13 19:53:14,817 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:14,817 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:14,818 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:14,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:14,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1150570790, now seen corresponding path program 1 times [2019-10-13 19:53:14,820 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:14,821 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549357033] [2019-10-13 19:53:14,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:14,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:14,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:14,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:14,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549357033] [2019-10-13 19:53:14,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461874600] [2019-10-13 19:53:14,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:14,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:15,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:15,033 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:15,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:15,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1604843068] [2019-10-13 19:53:15,080 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 23 [2019-10-13 19:53:15,126 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:15,126 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:15,185 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:15,186 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 23 variables. [2019-10-13 19:53:15,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:15,190 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:15,228 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:15,229 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:15,231 INFO L553 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-10-13 19:53:15,231 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:15,232 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:15,232 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-13 19:53:15,232 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156953981] [2019-10-13 19:53:15,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:15,234 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:15,234 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:15,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:15,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:15,235 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 2 states. [2019-10-13 19:53:15,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:15,237 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-10-13 19:53:15,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:15,238 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-10-13 19:53:15,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:15,238 INFO L225 Difference]: With dead ends: 27 [2019-10-13 19:53:15,238 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:15,239 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:15,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:15,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:15,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-10-13 19:53:15,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:15,241 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:15,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:15,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:15,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:15,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:15,484 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:15,484 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:15,484 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:15,485 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:15,485 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:15,486 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:15,486 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:15,486 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 22) no Hoare annotation was computed. [2019-10-13 19:53:15,486 INFO L439 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: false [2019-10-13 19:53:15,486 INFO L443 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-10-13 19:53:15,487 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2019-10-13 19:53:15,487 INFO L439 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: false [2019-10-13 19:53:15,487 INFO L443 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-10-13 19:53:15,488 INFO L439 ceAbstractionStarter]: At program point L7-2(lines 7 10) the Hoare annotation is: false [2019-10-13 19:53:15,489 INFO L443 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-10-13 19:53:15,489 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 22) no Hoare annotation was computed. [2019-10-13 19:53:15,489 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 22) the Hoare annotation is: true [2019-10-13 19:53:15,491 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2019-10-13 19:53:15,491 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: false [2019-10-13 19:53:15,491 INFO L443 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2019-10-13 19:53:15,491 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2019-10-13 19:53:15,491 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 16) the Hoare annotation is: false [2019-10-13 19:53:15,492 INFO L443 ceAbstractionStarter]: For program point L14-4(lines 14 16) no Hoare annotation was computed. [2019-10-13 19:53:15,492 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:15,492 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:15,492 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:15,492 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:15,493 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:15,493 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:15,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:15 BoogieIcfgContainer [2019-10-13 19:53:15,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:15,505 INFO L168 Benchmark]: Toolchain (without parser) took 2006.83 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 103.0 MB in the beginning and 106.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,506 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.13 ms. Allocated memory is still 145.8 MB. Free memory was 102.8 MB in the beginning and 92.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,508 INFO L168 Benchmark]: Boogie Preprocessor took 123.86 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 92.8 MB in the beginning and 181.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,509 INFO L168 Benchmark]: RCFGBuilder took 308.08 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 166.1 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,510 INFO L168 Benchmark]: TraceAbstraction took 1321.92 ms. Allocated memory is still 203.4 MB. Free memory was 166.1 MB in the beginning and 106.0 MB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,514 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.13 ms. Allocated memory is still 145.8 MB. Free memory was 102.8 MB in the beginning and 92.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.86 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 92.8 MB in the beginning and 181.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 308.08 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 166.1 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1321.92 ms. Allocated memory is still 203.4 MB. Free memory was 166.1 MB in the beginning and 106.0 MB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 2 SDslu, 16 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 10 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 2119 SizeOfPredicates, 1 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 111, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9404761904761905, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8095238095238095, AVG_WEAKENED_CONJUNCTS: 0.2857142857142857, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...