java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label27_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 03:43:57,958 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 03:43:57,960 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 03:43:57,974 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 03:43:57,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 03:43:57,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 03:43:57,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 03:43:57,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 03:43:57,984 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 03:43:57,985 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 03:43:57,986 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 03:43:57,986 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 03:43:57,987 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 03:43:57,990 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 03:43:57,991 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 03:43:57,992 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 03:43:58,001 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 03:43:58,003 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 03:43:58,005 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 03:43:58,006 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 03:43:58,009 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 03:43:58,011 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 03:43:58,015 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 03:43:58,027 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 03:43:58,050 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 03:43:58,050 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 03:43:58,053 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 03:43:58,053 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 03:43:58,053 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 03:43:58,053 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 03:43:58,053 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 03:43:58,054 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 03:43:58,054 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 03:43:58,054 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 03:43:58,054 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 03:43:58,054 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 03:43:58,055 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 03:43:58,055 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 03:43:58,055 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 03:43:58,055 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 03:43:58,056 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 03:43:58,058 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 03:43:58,059 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 03:43:58,059 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 03:43:58,059 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 03:43:58,060 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 03:43:58,060 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 03:43:58,060 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 03:43:58,060 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 03:43:58,060 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 03:43:58,060 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 03:43:58,061 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 03:43:58,061 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 03:43:58,061 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 03:43:58,061 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 03:43:58,061 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 03:43:58,061 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 03:43:58,062 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 03:43:58,062 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 03:43:58,111 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 03:43:58,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 03:43:58,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 03:43:58,130 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 03:43:58,131 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 03:43:58,132 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label27_false-unreach-call_false-termination.c [2018-07-21 03:43:58,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/28f3f5cbd/0e1ca1b71fa74ee582f1b9391041122b/FLAGad8577abd [2018-07-21 03:43:58,854 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 03:43:58,854 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label27_false-unreach-call_false-termination.c [2018-07-21 03:43:58,882 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/28f3f5cbd/0e1ca1b71fa74ee582f1b9391041122b/FLAGad8577abd [2018-07-21 03:43:58,904 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/28f3f5cbd/0e1ca1b71fa74ee582f1b9391041122b [2018-07-21 03:43:58,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 03:43:58,926 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 03:43:58,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 03:43:58,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 03:43:58,935 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 03:43:58,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:43:58" (1/1) ... [2018-07-21 03:43:58,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5e4660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:58, skipping insertion in model container [2018-07-21 03:43:58,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:43:58" (1/1) ... [2018-07-21 03:43:59,178 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 03:43:59,562 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 03:43:59,582 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 03:43:59,774 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 03:43:59,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59 WrapperNode [2018-07-21 03:43:59,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 03:43:59,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 03:43:59,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 03:43:59,838 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 03:43:59,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (1/1) ... [2018-07-21 03:43:59,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (1/1) ... [2018-07-21 03:43:59,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 03:43:59,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 03:43:59,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 03:43:59,976 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 03:43:59,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (1/1) ... [2018-07-21 03:43:59,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (1/1) ... [2018-07-21 03:44:00,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (1/1) ... [2018-07-21 03:44:00,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (1/1) ... [2018-07-21 03:44:00,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (1/1) ... [2018-07-21 03:44:00,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (1/1) ... [2018-07-21 03:44:00,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (1/1) ... [2018-07-21 03:44:00,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 03:44:00,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 03:44:00,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 03:44:00,304 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 03:44:00,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 03:44:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 03:44:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 03:44:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 03:44:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 03:44:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 03:44:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 03:44:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-21 03:44:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-21 03:44:04,153 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 03:44:04,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:44:04 BoogieIcfgContainer [2018-07-21 03:44:04,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 03:44:04,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 03:44:04,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 03:44:04,164 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 03:44:04,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:43:58" (1/3) ... [2018-07-21 03:44:04,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2e89cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:44:04, skipping insertion in model container [2018-07-21 03:44:04,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:43:59" (2/3) ... [2018-07-21 03:44:04,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2e89cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:44:04, skipping insertion in model container [2018-07-21 03:44:04,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:44:04" (3/3) ... [2018-07-21 03:44:04,168 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label27_false-unreach-call_false-termination.c [2018-07-21 03:44:04,176 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 03:44:04,184 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 03:44:04,232 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 03:44:04,233 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 03:44:04,233 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 03:44:04,234 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 03:44:04,234 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 03:44:04,234 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 03:44:04,234 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 03:44:04,234 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 03:44:04,234 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 03:44:04,262 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-07-21 03:44:04,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-21 03:44:04,270 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:44:04,271 INFO L358 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, 1, 1, 1, 1, 1] [2018-07-21 03:44:04,271 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:44:04,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1345553532, now seen corresponding path program 1 times [2018-07-21 03:44:04,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:44:04,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:44:04,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:44:04,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:44:04,333 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:44:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:44:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:44:04,786 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:44:04,786 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 03:44:04,787 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:44:04,791 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 03:44:04,807 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 03:44:04,808 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:44:04,811 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-07-21 03:44:07,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:44:07,007 INFO L93 Difference]: Finished difference Result 894 states and 1610 transitions. [2018-07-21 03:44:07,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 03:44:07,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-07-21 03:44:07,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:44:07,036 INFO L225 Difference]: With dead ends: 894 [2018-07-21 03:44:07,036 INFO L226 Difference]: Without dead ends: 633 [2018-07-21 03:44:07,044 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:44:07,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-07-21 03:44:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 434. [2018-07-21 03:44:07,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-07-21 03:44:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 662 transitions. [2018-07-21 03:44:07,126 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 662 transitions. Word has length 36 [2018-07-21 03:44:07,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:44:07,126 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 662 transitions. [2018-07-21 03:44:07,126 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 03:44:07,126 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 662 transitions. [2018-07-21 03:44:07,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-21 03:44:07,133 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:44:07,133 INFO L358 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, 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] [2018-07-21 03:44:07,133 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:44:07,134 INFO L82 PathProgramCache]: Analyzing trace with hash -393333916, now seen corresponding path program 1 times [2018-07-21 03:44:07,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:44:07,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:44:07,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:44:07,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:44:07,135 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:44:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:44:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:44:07,382 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:44:07,382 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 03:44:07,382 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:44:07,385 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 03:44:07,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 03:44:07,386 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:44:07,386 INFO L87 Difference]: Start difference. First operand 434 states and 662 transitions. Second operand 4 states. [2018-07-21 03:44:10,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:44:10,565 INFO L93 Difference]: Finished difference Result 1594 states and 2544 transitions. [2018-07-21 03:44:10,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 03:44:10,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2018-07-21 03:44:10,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:44:10,577 INFO L225 Difference]: With dead ends: 1594 [2018-07-21 03:44:10,577 INFO L226 Difference]: Without dead ends: 1166 [2018-07-21 03:44:10,583 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:44:10,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2018-07-21 03:44:10,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1166. [2018-07-21 03:44:10,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1166 states. [2018-07-21 03:44:10,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 1703 transitions. [2018-07-21 03:44:10,685 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 1703 transitions. Word has length 120 [2018-07-21 03:44:10,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:44:10,687 INFO L471 AbstractCegarLoop]: Abstraction has 1166 states and 1703 transitions. [2018-07-21 03:44:10,687 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 03:44:10,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 1703 transitions. [2018-07-21 03:44:10,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-07-21 03:44:10,707 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:44:10,708 INFO L358 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, 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, 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] [2018-07-21 03:44:10,708 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:44:10,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1821515573, now seen corresponding path program 1 times [2018-07-21 03:44:10,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:44:10,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:44:10,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:44:10,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:44:10,713 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:44:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:44:10,988 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:44:10,988 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:44:10,988 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 03:44:10,988 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:44:10,989 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 03:44:10,989 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 03:44:10,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:44:10,990 INFO L87 Difference]: Start difference. First operand 1166 states and 1703 transitions. Second operand 4 states. [2018-07-21 03:44:13,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:44:13,552 INFO L93 Difference]: Finished difference Result 4156 states and 6381 transitions. [2018-07-21 03:44:13,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 03:44:13,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2018-07-21 03:44:13,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:44:13,584 INFO L225 Difference]: With dead ends: 4156 [2018-07-21 03:44:13,584 INFO L226 Difference]: Without dead ends: 2996 [2018-07-21 03:44:13,600 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:44:13,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2018-07-21 03:44:13,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 2996. [2018-07-21 03:44:13,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2996 states. [2018-07-21 03:44:13,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 4293 transitions. [2018-07-21 03:44:13,745 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 4293 transitions. Word has length 149 [2018-07-21 03:44:13,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:44:13,748 INFO L471 AbstractCegarLoop]: Abstraction has 2996 states and 4293 transitions. [2018-07-21 03:44:13,749 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 03:44:13,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 4293 transitions. [2018-07-21 03:44:13,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-07-21 03:44:13,761 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:44:13,761 INFO L358 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 03:44:13,761 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:44:13,761 INFO L82 PathProgramCache]: Analyzing trace with hash -2123604701, now seen corresponding path program 1 times [2018-07-21 03:44:13,762 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:44:13,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:44:13,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:44:13,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:44:13,764 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:44:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:44:14,406 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:44:14,406 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 03:44:14,406 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 03:44:14,407 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-07-21 03:44:14,410 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [574], [972], [973], [974], [975], [977], [978] [2018-07-21 03:44:14,494 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 03:44:14,494 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 03:44:21,452 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 03:44:21,456 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 03:44:21,499 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 03:44:29,674 INFO L232 lantSequenceWeakener]: Weakened 193 states. On average, predicates are now at 77.8% of their original sizes. [2018-07-21 03:44:29,675 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 03:44:30,338 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 03:44:30,339 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 03:44:30,340 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-21 03:44:30,340 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:44:30,341 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 03:44:30,341 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 03:44:30,341 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 03:44:30,341 INFO L87 Difference]: Start difference. First operand 2996 states and 4293 transitions. Second operand 7 states. [2018-07-21 03:44:39,897 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 03:45:39,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:45:39,536 INFO L93 Difference]: Finished difference Result 6171 states and 8821 transitions. [2018-07-21 03:45:39,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 03:45:39,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2018-07-21 03:45:39,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:45:39,561 INFO L225 Difference]: With dead ends: 6171 [2018-07-21 03:45:39,561 INFO L226 Difference]: Without dead ends: 3181 [2018-07-21 03:45:39,577 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 201 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-21 03:45:39,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2018-07-21 03:45:39,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 3179. [2018-07-21 03:45:39,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3179 states. [2018-07-21 03:45:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4484 transitions. [2018-07-21 03:45:39,713 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4484 transitions. Word has length 201 [2018-07-21 03:45:39,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:45:39,713 INFO L471 AbstractCegarLoop]: Abstraction has 3179 states and 4484 transitions. [2018-07-21 03:45:39,714 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-21 03:45:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4484 transitions. [2018-07-21 03:45:39,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-07-21 03:45:39,724 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:45:39,724 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 03:45:39,724 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:45:39,725 INFO L82 PathProgramCache]: Analyzing trace with hash 900369084, now seen corresponding path program 1 times [2018-07-21 03:45:39,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:45:39,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:45:39,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:45:39,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:45:39,727 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:45:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:45:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 174 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 03:45:40,497 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 03:45:40,498 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 03:45:40,498 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-07-21 03:45:40,498 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [574], [575], [578], [972], [973], [974], [975], [977], [978] [2018-07-21 03:45:40,504 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 03:45:40,505 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 03:45:47,836 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 03:45:47,837 INFO L272 AbstractInterpreter]: Visited 94 different actions 184 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 03:45:47,847 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 03:45:51,521 INFO L232 lantSequenceWeakener]: Weakened 284 states. On average, predicates are now at 77.71% of their original sizes. [2018-07-21 03:45:51,521 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 03:45:56,602 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 03:45:56,602 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 03:45:56,602 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [12] total 24 [2018-07-21 03:45:56,603 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:45:56,603 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-21 03:45:56,603 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-21 03:45:56,604 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-07-21 03:45:56,605 INFO L87 Difference]: Start difference. First operand 3179 states and 4484 transitions. Second operand 14 states. [2018-07-21 03:46:09,550 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 03:46:31,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:46:31,683 INFO L93 Difference]: Finished difference Result 6541 states and 9255 transitions. [2018-07-21 03:46:31,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-21 03:46:31,684 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 286 [2018-07-21 03:46:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:46:31,707 INFO L225 Difference]: With dead ends: 6541 [2018-07-21 03:46:31,707 INFO L226 Difference]: Without dead ends: 3551 [2018-07-21 03:46:31,720 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 294 GetRequests, 213 SyntacticMatches, 60 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2018-07-21 03:46:31,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3551 states. [2018-07-21 03:46:31,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3551 to 3548. [2018-07-21 03:46:31,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3548 states. [2018-07-21 03:46:31,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 4870 transitions. [2018-07-21 03:46:31,857 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 4870 transitions. Word has length 286 [2018-07-21 03:46:31,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:46:31,857 INFO L471 AbstractCegarLoop]: Abstraction has 3548 states and 4870 transitions. [2018-07-21 03:46:31,857 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-21 03:46:31,857 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 4870 transitions. [2018-07-21 03:46:31,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-07-21 03:46:31,868 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:46:31,869 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-07-21 03:46:31,869 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:46:31,869 INFO L82 PathProgramCache]: Analyzing trace with hash -768021296, now seen corresponding path program 1 times [2018-07-21 03:46:31,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:46:31,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:46:31,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:46:31,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:46:31,871 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:46:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:46:32,259 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 146 proven. 133 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-07-21 03:46:32,259 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 03:46:32,259 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 03:46:32,259 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 313 with the following transitions: [2018-07-21 03:46:32,260 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [574], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [682], [972], [973], [974], [975], [977], [978] [2018-07-21 03:46:32,266 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 03:46:32,266 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 03:46:44,646 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 03:46:44,647 INFO L272 AbstractInterpreter]: Visited 120 different actions 236 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 03:46:44,657 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 03:46:47,982 INFO L232 lantSequenceWeakener]: Weakened 310 states. On average, predicates are now at 77.67% of their original sizes. [2018-07-21 03:46:47,982 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 03:46:49,423 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 03:46:49,423 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 03:46:49,461 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2018-07-21 03:46:49,462 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:46:49,462 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-21 03:46:49,462 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-21 03:46:49,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-07-21 03:46:49,463 INFO L87 Difference]: Start difference. First operand 3548 states and 4870 transitions. Second operand 12 states. [2018-07-21 03:46:58,846 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 03:47:07,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:47:07,215 INFO L93 Difference]: Finished difference Result 6726 states and 9380 transitions. [2018-07-21 03:47:07,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-21 03:47:07,215 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 312 [2018-07-21 03:47:07,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:47:07,233 INFO L225 Difference]: With dead ends: 6726 [2018-07-21 03:47:07,234 INFO L226 Difference]: Without dead ends: 3736 [2018-07-21 03:47:07,247 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 321 GetRequests, 279 SyntacticMatches, 22 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2018-07-21 03:47:07,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2018-07-21 03:47:07,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3733. [2018-07-21 03:47:07,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3733 states. [2018-07-21 03:47:07,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 5062 transitions. [2018-07-21 03:47:07,383 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 5062 transitions. Word has length 312 [2018-07-21 03:47:07,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:47:07,383 INFO L471 AbstractCegarLoop]: Abstraction has 3733 states and 5062 transitions. [2018-07-21 03:47:07,384 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-21 03:47:07,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 5062 transitions. [2018-07-21 03:47:07,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-07-21 03:47:07,394 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:47:07,394 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 03:47:07,394 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:47:07,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1104864412, now seen corresponding path program 1 times [2018-07-21 03:47:07,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:47:07,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:47:07,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:47:07,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:47:07,396 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:47:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:47:07,754 WARN L169 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-07-21 03:47:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 225 proven. 65 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-21 03:47:08,068 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 03:47:08,068 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 03:47:08,069 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 339 with the following transitions: [2018-07-21 03:47:08,069 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [682], [972], [973], [974], [975], [977], [978] [2018-07-21 03:47:08,079 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 03:47:08,079 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 03:47:15,744 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 03:47:21,072 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 03:47:21,100 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 03:47:21,101 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 03:47:21,101 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 03:47:21,101 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 03:47:21,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:47:21,109 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 03:47:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:47:21,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 03:47:21,310 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 03:47:21,511 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 03:47:21,512 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 03:47:21,516 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 03:47:21,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:47:21 BoogieIcfgContainer [2018-07-21 03:47:21,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 03:47:21,517 INFO L168 Benchmark]: Toolchain (without parser) took 202599.32 ms. Allocated memory was 307.2 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 252.6 MB in the beginning and 709.0 MB in the end (delta: -456.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. [2018-07-21 03:47:21,518 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 03:47:21,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 909.44 ms. Allocated memory is still 307.2 MB. Free memory was 251.6 MB in the beginning and 206.5 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 5.3 GB. [2018-07-21 03:47:21,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.72 ms. Allocated memory is still 307.2 MB. Free memory was 206.5 MB in the beginning and 196.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-07-21 03:47:21,519 INFO L168 Benchmark]: Boogie Preprocessor took 322.98 ms. Allocated memory was 307.2 MB in the beginning and 492.3 MB in the end (delta: 185.1 MB). Free memory was 196.5 MB in the beginning and 455.3 MB in the end (delta: -258.8 MB). Peak memory consumption was 33.9 MB. Max. memory is 5.3 GB. [2018-07-21 03:47:21,520 INFO L168 Benchmark]: RCFGBuilder took 3850.28 ms. Allocated memory was 492.3 MB in the beginning and 510.7 MB in the end (delta: 18.4 MB). Free memory was 455.3 MB in the beginning and 463.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 135.5 MB. Max. memory is 5.3 GB. [2018-07-21 03:47:21,520 INFO L168 Benchmark]: TraceAbstraction took 197361.09 ms. Allocated memory was 510.7 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 463.6 MB in the beginning and 709.0 MB in the end (delta: -245.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. [2018-07-21 03:47:21,526 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 909.44 ms. Allocated memory is still 307.2 MB. Free memory was 251.6 MB in the beginning and 206.5 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 137.72 ms. Allocated memory is still 307.2 MB. Free memory was 206.5 MB in the beginning and 196.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 322.98 ms. Allocated memory was 307.2 MB in the beginning and 492.3 MB in the end (delta: 185.1 MB). Free memory was 196.5 MB in the beginning and 455.3 MB in the end (delta: -258.8 MB). Peak memory consumption was 33.9 MB. Max. memory is 5.3 GB. * RCFGBuilder took 3850.28 ms. Allocated memory was 492.3 MB in the beginning and 510.7 MB in the end (delta: 18.4 MB). Free memory was 455.3 MB in the beginning and 463.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 135.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 197361.09 ms. Allocated memory was 510.7 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 463.6 MB in the beginning and 709.0 MB in the end (delta: -245.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 91). Cancelled while BasicCegarLoop was analyzing trace of length 339 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 7 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 197.2s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 130.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1219 SDtfs, 4089 SDslu, 1131 SDs, 0 SdLazy, 7236 SolverSat, 1287 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 832 GetRequests, 697 SyntacticMatches, 82 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3733occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 39.8s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9951273578035099 AbsIntWeakeningRatio, 0.11306532663316583 AbsIntAvgWeakeningVarsNumRemoved, 64.8429648241206 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 207 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1104 NumberOfCodeBlocks, 1104 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1098 ConstructedInterpolants, 0 QuantifiedInterpolants, 1861504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 574/863 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem14_label27_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_03-47-21-540.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem14_label27_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_03-47-21-540.csv Completed graceful shutdown