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 -i ../../../trunk/examples/svcomp/array-crafted/bor5.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 16:15:03,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 16:15:03,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 16:15:04,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 16:15:04,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 16:15:04,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 16:15:04,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 16:15:04,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 16:15:04,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 16:15:04,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 16:15:04,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 16:15:04,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 16:15:04,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 16:15:04,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 16:15:04,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 16:15:04,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 16:15:04,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 16:15:04,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 16:15:04,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 16:15:04,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 16:15:04,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 16:15:04,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 16:15:04,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 16:15:04,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 16:15:04,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 16:15:04,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 16:15:04,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 16:15:04,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 16:15:04,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 16:15:04,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 16:15:04,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 16:15:04,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 16:15:04,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 16:15:04,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 16:15:04,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 16:15:04,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 16:15:04,045 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 [2019-09-16 16:15:04,058 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 16:15:04,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 16:15:04,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 16:15:04,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 16:15:04,060 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 16:15:04,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 16:15:04,061 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 16:15:04,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 16:15:04,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 16:15:04,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 16:15:04,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 16:15:04,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 16:15:04,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 16:15:04,062 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 16:15:04,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 16:15:04,062 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 16:15:04,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 16:15:04,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 16:15:04,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 16:15:04,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 16:15:04,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 16:15:04,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 16:15:04,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 16:15:04,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 16:15:04,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 16:15:04,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 16:15:04,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 16:15:04,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 16:15:04,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 16:15:04,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 16:15:04,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 16:15:04,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 16:15:04,113 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 16:15:04,113 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 16:15:04,114 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/bor5.i [2019-09-16 16:15:04,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77c8afd58/885b536a1dea416ebe16f68d33b8d0ad/FLAG5a3245f43 [2019-09-16 16:15:04,600 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 16:15:04,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/bor5.i [2019-09-16 16:15:04,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77c8afd58/885b536a1dea416ebe16f68d33b8d0ad/FLAG5a3245f43 [2019-09-16 16:15:05,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77c8afd58/885b536a1dea416ebe16f68d33b8d0ad [2019-09-16 16:15:05,041 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 16:15:05,043 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 16:15:05,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 16:15:05,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 16:15:05,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 16:15:05,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:15:05" (1/1) ... [2019-09-16 16:15:05,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e10d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05, skipping insertion in model container [2019-09-16 16:15:05,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:15:05" (1/1) ... [2019-09-16 16:15:05,059 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 16:15:05,076 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 16:15:05,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:15:05,285 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 16:15:05,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:15:05,412 INFO L192 MainTranslator]: Completed translation [2019-09-16 16:15:05,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05 WrapperNode [2019-09-16 16:15:05,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 16:15:05,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 16:15:05,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 16:15:05,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 16:15:05,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05" (1/1) ... [2019-09-16 16:15:05,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05" (1/1) ... [2019-09-16 16:15:05,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05" (1/1) ... [2019-09-16 16:15:05,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05" (1/1) ... [2019-09-16 16:15:05,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05" (1/1) ... [2019-09-16 16:15:05,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05" (1/1) ... [2019-09-16 16:15:05,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05" (1/1) ... [2019-09-16 16:15:05,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 16:15:05,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 16:15:05,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 16:15:05,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 16:15:05,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05" (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 [2019-09-16 16:15:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 16:15:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 16:15:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure bor [2019-09-16 16:15:05,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 16:15:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 16:15:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 16:15:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure bor [2019-09-16 16:15:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 16:15:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 16:15:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 16:15:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 16:15:05,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 16:15:05,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 16:15:05,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 16:15:05,871 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 16:15:05,871 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-16 16:15:05,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:15:05 BoogieIcfgContainer [2019-09-16 16:15:05,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 16:15:05,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 16:15:05,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 16:15:05,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 16:15:05,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 04:15:05" (1/3) ... [2019-09-16 16:15:05,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29351144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:15:05, skipping insertion in model container [2019-09-16 16:15:05,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:15:05" (2/3) ... [2019-09-16 16:15:05,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29351144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:15:05, skipping insertion in model container [2019-09-16 16:15:05,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:15:05" (3/3) ... [2019-09-16 16:15:05,882 INFO L109 eAbstractionObserver]: Analyzing ICFG bor5.i [2019-09-16 16:15:05,892 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 16:15:05,899 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 16:15:05,915 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 16:15:05,944 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-16 16:15:05,945 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 16:15:05,945 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-16 16:15:05,945 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 16:15:05,945 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 16:15:05,945 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 16:15:05,945 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 16:15:05,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 16:15:05,945 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 16:15:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-09-16 16:15:05,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-09-16 16:15:05,967 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:15:05,968 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:15:05,970 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:15:05,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:15:05,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1089041636, now seen corresponding path program 1 times [2019-09-16 16:15:05,975 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:15:05,976 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:15:06,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:15:06,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:15:06,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:15:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:15:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-16 16:15:06,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:15:06,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 16:15:06,164 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 16:15:06,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 16:15:06,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 16:15:06,179 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-09-16 16:15:06,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:15:06,199 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2019-09-16 16:15:06,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 16:15:06,201 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 33 [2019-09-16 16:15:06,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:15:06,209 INFO L225 Difference]: With dead ends: 57 [2019-09-16 16:15:06,209 INFO L226 Difference]: Without dead ends: 27 [2019-09-16 16:15:06,212 INFO L636 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 [2019-09-16 16:15:06,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-09-16 16:15:06,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-09-16 16:15:06,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-16 16:15:06,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-09-16 16:15:06,253 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 33 [2019-09-16 16:15:06,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:15:06,253 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-09-16 16:15:06,253 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 16:15:06,254 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2019-09-16 16:15:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-09-16 16:15:06,256 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:15:06,256 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:15:06,257 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:15:06,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:15:06,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1200270940, now seen corresponding path program 1 times [2019-09-16 16:15:06,259 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:15:06,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:15:06,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:15:06,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:15:06,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:15:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:15:06,411 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-16 16:15:06,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:15:06,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:15:06,413 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:15:06,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:15:06,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:15:06,414 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 3 states. [2019-09-16 16:15:06,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:15:06,451 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2019-09-16 16:15:06,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:15:06,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-09-16 16:15:06,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:15:06,453 INFO L225 Difference]: With dead ends: 47 [2019-09-16 16:15:06,453 INFO L226 Difference]: Without dead ends: 29 [2019-09-16 16:15:06,454 INFO L636 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 [2019-09-16 16:15:06,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-09-16 16:15:06,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-09-16 16:15:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-09-16 16:15:06,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-09-16 16:15:06,464 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 33 [2019-09-16 16:15:06,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:15:06,464 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-09-16 16:15:06,465 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:15:06,465 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-09-16 16:15:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-09-16 16:15:06,466 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:15:06,466 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:15:06,467 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:15:06,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:15:06,467 INFO L82 PathProgramCache]: Analyzing trace with hash 592534566, now seen corresponding path program 1 times [2019-09-16 16:15:06,468 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:15:06,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:15:06,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:15:06,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:15:06,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:15:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:15:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-16 16:15:06,577 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 16:15:06,578 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-16 16:15:06,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-16 16:15:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:15:06,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-16 16:15:06,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-16 16:15:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-16 16:15:06,744 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-16 16:15:06,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-09-16 16:15:06,745 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 16:15:06,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 16:15:06,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-16 16:15:06,746 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2019-09-16 16:15:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:15:06,876 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-09-16 16:15:06,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 16:15:06,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-09-16 16:15:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:15:06,878 INFO L225 Difference]: With dead ends: 51 [2019-09-16 16:15:06,878 INFO L226 Difference]: Without dead ends: 33 [2019-09-16 16:15:06,879 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-09-16 16:15:06,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-09-16 16:15:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-09-16 16:15:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-09-16 16:15:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-09-16 16:15:06,887 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 35 [2019-09-16 16:15:06,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:15:06,888 INFO L475 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-09-16 16:15:06,888 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 16:15:06,888 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-09-16 16:15:06,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-16 16:15:06,889 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:15:06,890 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:15:06,890 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:15:06,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:15:06,891 INFO L82 PathProgramCache]: Analyzing trace with hash 476203942, now seen corresponding path program 1 times [2019-09-16 16:15:06,891 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:15:06,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:15:06,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:15:06,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:15:06,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:15:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:15:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-16 16:15:06,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:15:06,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 16:15:06,995 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 16:15:06,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 16:15:06,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-16 16:15:06,996 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 4 states. [2019-09-16 16:15:07,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:15:07,076 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2019-09-16 16:15:07,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 16:15:07,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2019-09-16 16:15:07,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:15:07,078 INFO L225 Difference]: With dead ends: 46 [2019-09-16 16:15:07,078 INFO L226 Difference]: Without dead ends: 33 [2019-09-16 16:15:07,079 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-16 16:15:07,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-09-16 16:15:07,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-09-16 16:15:07,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-16 16:15:07,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2019-09-16 16:15:07,092 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 43 [2019-09-16 16:15:07,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:15:07,101 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2019-09-16 16:15:07,101 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 16:15:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-09-16 16:15:07,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-16 16:15:07,103 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:15:07,105 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:15:07,106 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:15:07,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:15:07,106 INFO L82 PathProgramCache]: Analyzing trace with hash -106794812, now seen corresponding path program 1 times [2019-09-16 16:15:07,106 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:15:07,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:15:07,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:15:07,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:15:07,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:15:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-16 16:15:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-16 16:15:07,297 INFO L474 BasicCegarLoop]: Counterexample might be feasible [2019-09-16 16:15:07,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 04:15:07 BoogieIcfgContainer [2019-09-16 16:15:07,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 16:15:07,351 INFO L168 Benchmark]: Toolchain (without parser) took 2306.37 ms. Allocated memory was 133.7 MB in the beginning and 226.5 MB in the end (delta: 92.8 MB). Free memory was 88.4 MB in the beginning and 178.1 MB in the end (delta: -89.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-09-16 16:15:07,353 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 133.7 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 16:15:07,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.97 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 88.2 MB in the beginning and 177.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-09-16 16:15:07,357 INFO L168 Benchmark]: Boogie Preprocessor took 70.87 ms. Allocated memory is still 200.8 MB. Free memory was 177.6 MB in the beginning and 175.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-09-16 16:15:07,358 INFO L168 Benchmark]: RCFGBuilder took 389.74 ms. Allocated memory is still 200.8 MB. Free memory was 175.4 MB in the beginning and 158.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-09-16 16:15:07,359 INFO L168 Benchmark]: TraceAbstraction took 1471.44 ms. Allocated memory was 200.8 MB in the beginning and 226.5 MB in the end (delta: 25.7 MB). Free memory was 158.2 MB in the beginning and 178.1 MB in the end (delta: -19.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2019-09-16 16:15:07,369 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 133.7 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 369.97 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 88.2 MB in the beginning and 177.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.87 ms. Allocated memory is still 200.8 MB. Free memory was 177.6 MB in the beginning and 175.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 389.74 ms. Allocated memory is still 200.8 MB. Free memory was 175.4 MB in the beginning and 158.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1471.44 ms. Allocated memory was 200.8 MB in the beginning and 226.5 MB in the end (delta: 25.7 MB). Free memory was 158.2 MB in the beginning and 178.1 MB in the end (delta: -19.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 46]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 14. Possible FailurePath: [L6] int N; VAL [\old(N)=10, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND TRUE N > 1 [L23] int x[N]; [L24] int temp; [L25] int ret; [L26] int ret2; [L27] int ret5; [L29] int i = 0; VAL [\old(N)=0, i=0, N=2, x={1:0}] [L29] COND TRUE i < N [L31] x[i] = __VERIFIER_nondet_int() [L29] i++ VAL [\old(N)=0, i=1, N=2, x={1:0}] [L29] COND TRUE i < N [L31] x[i] = __VERIFIER_nondet_int() [L29] i++ VAL [\old(N)=0, i=2, N=2, x={1:0}] [L29] COND FALSE !(i < N) VAL [\old(N)=0, i=2, N=2, x={1:0}] [L34] CALL, EXPR bor(x) VAL [\old(N)=0, N=2, x={1:0}] [L10] int i; [L11] long long res; [L12] EXPR x[0] [L12] res = x[0] [L13] i = 1 VAL [\old(N)=0, i=1, N=2, res=1, x={1:0}, x={1:0}] [L13] COND TRUE i < N [L14] EXPR x[i] [L14] res = res | x[i] [L13] i++ VAL [\old(N)=0, i=2, N=2, x={1:0}, x={1:0}] [L13] COND FALSE !(i < N) VAL [\old(N)=0, i=2, N=2, x={1:0}, x={1:0}] [L16] return res; VAL [\old(N)=0, \result=0, i=2, N=2, res=0, x={1:0}, x={1:0}] [L34] RET, EXPR bor(x) VAL [\old(N)=0, bor(x)=0, i=2, N=2, x={1:0}] [L34] ret = bor(x) [L36] EXPR x[0] [L36] temp=x[0] [L36] EXPR x[1] [L36] x[0] = x[1] [L36] x[1] = temp VAL [\old(N)=0, i=2, N=2, ret=0, temp=1, x={1:0}] [L37] CALL, EXPR bor(x) VAL [\old(N)=0, N=2, x={1:0}] [L10] int i; [L11] long long res; [L12] EXPR x[0] [L12] res = x[0] [L13] i = 1 VAL [\old(N)=0, i=1, N=2, res=0, x={1:0}, x={1:0}] [L13] COND TRUE i < N [L14] EXPR x[i] [L14] res = res | x[i] [L13] i++ VAL [\old(N)=0, i=2, N=2, x={1:0}, x={1:0}] [L13] COND FALSE !(i < N) VAL [\old(N)=0, i=2, N=2, x={1:0}, x={1:0}] [L16] return res; VAL [\old(N)=0, \result=-2, i=2, N=2, res=4294967294, x={1:0}, x={1:0}] [L37] RET, EXPR bor(x) VAL [\old(N)=0, bor(x)=-2, i=2, N=2, ret=0, temp=1, x={1:0}] [L37] ret2 = bor(x) [L38] EXPR x[0] [L38] temp=x[0] [L39] int i =0 ; VAL [\old(N)=0, i=2, i=0, N=2, ret=0, ret2=-2, temp=0, x={1:0}] [L39] COND TRUE i