java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label30_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:52:47,923 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:52:47,925 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:52:47,942 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:52:47,942 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:52:47,943 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:52:47,945 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:52:47,949 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:52:47,951 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:52:47,951 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:52:47,952 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:52:47,953 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:52:47,954 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:52:47,955 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:52:47,956 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:52:47,957 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:52:47,958 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:52:47,960 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:52:47,962 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:52:47,964 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:52:47,965 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:52:47,966 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:52:47,969 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:52:47,978 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:52:47,993 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:52:47,994 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:52:47,995 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:52:47,995 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:52:47,995 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:52:47,995 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:52:47,995 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:52:47,996 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:52:47,996 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:52:47,996 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:52:47,996 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:52:47,997 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:52:47,997 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:52:47,998 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:52:47,998 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:52:47,998 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:52:47,998 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:52:47,998 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:52:47,999 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:52:47,999 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:52:47,999 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:52:47,999 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:52:47,999 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:52:48,000 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:52:48,000 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:52:48,000 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:52:48,000 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:52:48,001 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:52:48,001 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:52:48,001 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:52:48,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:52:48,001 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:52:48,002 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:52:48,002 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:52:48,045 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:52:48,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:52:48,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:52:48,064 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:52:48,064 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:52:48,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label30_false-unreach-call.c [2018-10-24 18:52:48,126 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2e30d02a8/7585a5cc4bf14cba929e12301536f42a/FLAGd54bd8a73 [2018-10-24 18:52:48,844 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:52:48,845 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label30_false-unreach-call.c [2018-10-24 18:52:48,874 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2e30d02a8/7585a5cc4bf14cba929e12301536f42a/FLAGd54bd8a73 [2018-10-24 18:52:48,893 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2e30d02a8/7585a5cc4bf14cba929e12301536f42a [2018-10-24 18:52:48,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:52:48,909 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:52:48,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:52:48,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:52:48,919 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:52:48,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:52:48" (1/1) ... [2018-10-24 18:52:48,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94a0266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:48, skipping insertion in model container [2018-10-24 18:52:48,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:52:48" (1/1) ... [2018-10-24 18:52:48,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:52:49,074 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:52:50,079 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:52:50,083 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:52:50,483 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:52:50,510 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:52:50,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50 WrapperNode [2018-10-24 18:52:50,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:52:50,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:52:50,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:52:50,512 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:52:50,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (1/1) ... [2018-10-24 18:52:50,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (1/1) ... [2018-10-24 18:52:50,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:52:50,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:52:50,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:52:50,997 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:52:51,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (1/1) ... [2018-10-24 18:52:51,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (1/1) ... [2018-10-24 18:52:51,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (1/1) ... [2018-10-24 18:52:51,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (1/1) ... [2018-10-24 18:52:51,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (1/1) ... [2018-10-24 18:52:51,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (1/1) ... [2018-10-24 18:52:51,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (1/1) ... [2018-10-24 18:52:51,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:52:51,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:52:51,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:52:51,311 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:52:51,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 18:52:51,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:52:51,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:52:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:52:51,381 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:52:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:52:51,381 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:52:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:52:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:52:51,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:52:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:53:03,508 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:53:03,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:53:03 BoogieIcfgContainer [2018-10-24 18:53:03,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:53:03,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:53:03,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:53:03,518 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:53:03,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:52:48" (1/3) ... [2018-10-24 18:53:03,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d84232c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:53:03, skipping insertion in model container [2018-10-24 18:53:03,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:50" (2/3) ... [2018-10-24 18:53:03,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d84232c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:53:03, skipping insertion in model container [2018-10-24 18:53:03,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:53:03" (3/3) ... [2018-10-24 18:53:03,523 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label30_false-unreach-call.c [2018-10-24 18:53:03,534 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:53:03,548 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:53:03,567 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:53:03,628 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:53:03,628 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:53:03,628 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:53:03,629 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:53:03,629 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:53:03,629 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:53:03,629 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:53:03,629 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:53:03,665 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 18:53:03,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-24 18:53:03,672 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:53:03,674 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:53:03,676 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:53:03,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:03,683 INFO L82 PathProgramCache]: Analyzing trace with hash 2090317142, now seen corresponding path program 1 times [2018-10-24 18:53:03,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:53:03,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:03,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:53:03,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:03,745 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:53:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:53:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:53:04,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:53:04,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:53:04,154 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:53:04,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:53:04,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:53:04,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:53:04,177 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 18:53:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:53:15,754 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-10-24 18:53:15,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:53:15,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-10-24 18:53:15,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:53:15,792 INFO L225 Difference]: With dead ends: 2162 [2018-10-24 18:53:15,792 INFO L226 Difference]: Without dead ends: 1552 [2018-10-24 18:53:15,806 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:53:15,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-10-24 18:53:15,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-10-24 18:53:15,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-10-24 18:53:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-10-24 18:53:15,961 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 31 [2018-10-24 18:53:15,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:53:15,962 INFO L481 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-10-24 18:53:15,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:53:15,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-10-24 18:53:15,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-24 18:53:15,970 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:53:15,970 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:53:15,970 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:53:15,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:15,971 INFO L82 PathProgramCache]: Analyzing trace with hash -683023063, now seen corresponding path program 1 times [2018-10-24 18:53:15,971 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:53:15,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:15,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:53:15,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:15,973 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:53:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:53:16,328 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:53:16,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:53:16,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:53:16,329 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:53:16,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:53:16,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:53:16,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:53:16,332 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-10-24 18:53:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:53:35,259 INFO L93 Difference]: Finished difference Result 5787 states and 10682 transitions. [2018-10-24 18:53:35,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:53:35,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-10-24 18:53:35,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:53:35,297 INFO L225 Difference]: With dead ends: 5787 [2018-10-24 18:53:35,297 INFO L226 Difference]: Without dead ends: 4268 [2018-10-24 18:53:35,320 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:53:35,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4268 states. [2018-10-24 18:53:35,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4268 to 4242. [2018-10-24 18:53:35,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4242 states. [2018-10-24 18:53:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4242 states to 4242 states and 6360 transitions. [2018-10-24 18:53:35,470 INFO L78 Accepts]: Start accepts. Automaton has 4242 states and 6360 transitions. Word has length 110 [2018-10-24 18:53:35,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:53:35,471 INFO L481 AbstractCegarLoop]: Abstraction has 4242 states and 6360 transitions. [2018-10-24 18:53:35,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:53:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 4242 states and 6360 transitions. [2018-10-24 18:53:35,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 18:53:35,474 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:53:35,475 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:53:35,475 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:53:35,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:35,476 INFO L82 PathProgramCache]: Analyzing trace with hash -697377769, now seen corresponding path program 1 times [2018-10-24 18:53:35,476 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:53:35,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:35,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:53:35,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:35,478 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:53:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:53:35,732 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:53:35,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:53:35,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:53:35,733 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:53:35,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:53:35,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:53:35,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:53:35,734 INFO L87 Difference]: Start difference. First operand 4242 states and 6360 transitions. Second operand 6 states. [2018-10-24 18:53:42,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:53:42,504 INFO L93 Difference]: Finished difference Result 12710 states and 20700 transitions. [2018-10-24 18:53:42,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:53:42,508 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-10-24 18:53:42,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:53:42,581 INFO L225 Difference]: With dead ends: 12710 [2018-10-24 18:53:42,582 INFO L226 Difference]: Without dead ends: 8474 [2018-10-24 18:53:42,610 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:53:42,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2018-10-24 18:53:42,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 8389. [2018-10-24 18:53:42,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8389 states. [2018-10-24 18:53:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8389 states to 8389 states and 12579 transitions. [2018-10-24 18:53:42,905 INFO L78 Accepts]: Start accepts. Automaton has 8389 states and 12579 transitions. Word has length 111 [2018-10-24 18:53:42,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:53:42,906 INFO L481 AbstractCegarLoop]: Abstraction has 8389 states and 12579 transitions. [2018-10-24 18:53:42,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:53:42,906 INFO L276 IsEmpty]: Start isEmpty. Operand 8389 states and 12579 transitions. [2018-10-24 18:53:42,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-24 18:53:42,912 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:53:42,912 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:53:42,913 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:53:42,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:42,913 INFO L82 PathProgramCache]: Analyzing trace with hash -2038002306, now seen corresponding path program 1 times [2018-10-24 18:53:42,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:53:42,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:42,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:53:42,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:42,915 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:53:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:53:43,243 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:53:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 18:53:43,328 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:53:43,329 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:53:43,330 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-10-24 18:53:43,332 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [858], [860], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1239], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 18:53:43,400 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:53:43,400 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:53:44,742 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:54:05,735 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:54:05,737 INFO L272 AbstractInterpreter]: Visited 87 different actions 573 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 18:54:05,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:54:05,750 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:54:08,376 INFO L232 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 77.75% of their original sizes. [2018-10-24 18:54:08,376 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:55:12,943 INFO L413 sIntCurrentIteration]: We have 184 unified AI predicates [2018-10-24 18:55:12,944 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:55:12,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:55:12,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [27] imperfect sequences [6] total 31 [2018-10-24 18:55:12,945 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:55:12,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-24 18:55:12,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-24 18:55:12,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2018-10-24 18:55:12,947 INFO L87 Difference]: Start difference. First operand 8389 states and 12579 transitions. Second operand 27 states. Received shutdown request... [2018-10-24 18:56:55,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-24 18:56:55,582 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:56:55,587 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:56:55,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:56:55 BoogieIcfgContainer [2018-10-24 18:56:55,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:56:55,588 INFO L168 Benchmark]: Toolchain (without parser) took 246680.69 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 776.0 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:55,589 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:56:55,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1600.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:55,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 484.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -921.8 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:55,592 INFO L168 Benchmark]: Boogie Preprocessor took 313.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:55,593 INFO L168 Benchmark]: RCFGBuilder took 12202.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 470.8 MB). Peak memory consumption was 470.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:55,594 INFO L168 Benchmark]: TraceAbstraction took 232073.42 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 288.5 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:55,600 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1600.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 484.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -921.8 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 313.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12202.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 470.8 MB). Peak memory consumption was 470.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232073.42 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 288.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 80). Cancelled while BasicCegarLoop was constructing difference of abstraction (8389states) and FLOYD_HOARE automaton (currently 17 states, 27 states before enhancement),while ReachableStatesComputation was computing reachable states (386 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 231.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 140.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 686 SDtfs, 6600 SDslu, 814 SDs, 0 SdLazy, 9710 SolverSat, 3154 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 57.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 215 GetRequests, 129 SyntacticMatches, 40 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 67.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8389occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 22.4s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9938795986622072 AbsIntWeakeningRatio, 0.14673913043478262 AbsIntAvgWeakeningVarsNumRemoved, 807.804347826087 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 138 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 433 ConstructedInterpolants, 0 QuantifiedInterpolants, 218373 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 166/171 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown