java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 19:58:32,003 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 19:58:32,005 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 19:58:32,019 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 19:58:32,019 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 19:58:32,020 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 19:58:32,021 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 19:58:32,024 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 19:58:32,025 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 19:58:32,026 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 19:58:32,027 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 19:58:32,027 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 19:58:32,028 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 19:58:32,029 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 19:58:32,030 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 19:58:32,031 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 19:58:32,032 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 19:58:32,034 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 19:58:32,036 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 19:58:32,037 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 19:58:32,039 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 19:58:32,040 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 19:58:32,046 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 19:58:32,056 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 19:58:32,057 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 19:58:32,058 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 19:58:32,059 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 19:58:32,059 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-15 19:58:32,084 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 19:58:32,085 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 19:58:32,087 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 19:58:32,087 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 19:58:32,087 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 19:58:32,087 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 19:58:32,088 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 19:58:32,088 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 19:58:32,088 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 19:58:32,088 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 19:58:32,088 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 19:58:32,088 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 19:58:32,089 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 19:58:32,090 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 19:58:32,090 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 19:58:32,090 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 19:58:32,091 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 19:58:32,091 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 19:58:32,091 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 19:58:32,091 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 19:58:32,091 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 19:58:32,092 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 19:58:32,092 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 19:58:32,092 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 19:58:32,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 19:58:32,094 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 19:58:32,094 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 19:58:32,094 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 19:58:32,094 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 19:58:32,095 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 19:58:32,095 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 19:58:32,095 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 19:58:32,095 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 19:58:32,095 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 19:58:32,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 19:58:32,181 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 19:58:32,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 19:58:32,188 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 19:58:32,188 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 19:58:32,189 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label34_true-unreach-call.c [2018-09-15 19:58:32,562 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2111117/7e099db4a3694540984fa28ac018d6d2/FLAG59109bf04 [2018-09-15 19:58:33,094 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 19:58:33,095 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label34_true-unreach-call.c [2018-09-15 19:58:33,128 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2111117/7e099db4a3694540984fa28ac018d6d2/FLAG59109bf04 [2018-09-15 19:58:33,148 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2111117/7e099db4a3694540984fa28ac018d6d2 [2018-09-15 19:58:33,161 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 19:58:33,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 19:58:33,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 19:58:33,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 19:58:33,177 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 19:58:33,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 07:58:33" (1/1) ... [2018-09-15 19:58:33,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f8b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:33, skipping insertion in model container [2018-09-15 19:58:33,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 07:58:33" (1/1) ... [2018-09-15 19:58:33,195 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 19:58:34,628 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 19:58:34,648 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 19:58:35,433 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 19:58:35,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35 WrapperNode [2018-09-15 19:58:35,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 19:58:35,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 19:58:35,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 19:58:35,800 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 19:58:35,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (1/1) ... [2018-09-15 19:58:35,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (1/1) ... [2018-09-15 19:58:36,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 19:58:36,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 19:58:36,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 19:58:36,150 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 19:58:36,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (1/1) ... [2018-09-15 19:58:36,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (1/1) ... [2018-09-15 19:58:37,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (1/1) ... [2018-09-15 19:58:37,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (1/1) ... [2018-09-15 19:58:37,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (1/1) ... [2018-09-15 19:58:37,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (1/1) ... [2018-09-15 19:58:37,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (1/1) ... [2018-09-15 19:58:37,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 19:58:37,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 19:58:37,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 19:58:37,396 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 19:58:37,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 19:58:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 19:58:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 19:58:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 19:58:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 19:58:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 19:58:37,476 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 19:58:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 19:58:37,476 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 19:58:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 19:58:37,476 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 19:58:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 19:58:37,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 19:58:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 19:58:37,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 19:58:48,826 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 19:58:48,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:58:48 BoogieIcfgContainer [2018-09-15 19:58:48,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 19:58:48,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 19:58:48,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 19:58:48,831 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 19:58:48,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 07:58:33" (1/3) ... [2018-09-15 19:58:48,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12df1084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 07:58:48, skipping insertion in model container [2018-09-15 19:58:48,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:58:35" (2/3) ... [2018-09-15 19:58:48,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12df1084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 07:58:48, skipping insertion in model container [2018-09-15 19:58:48,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:58:48" (3/3) ... [2018-09-15 19:58:48,835 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label34_true-unreach-call.c [2018-09-15 19:58:48,845 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 19:58:48,856 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 19:58:48,920 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 19:58:48,921 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 19:58:48,921 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 19:58:48,921 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 19:58:48,921 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 19:58:48,921 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 19:58:48,921 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 19:58:48,921 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 19:58:48,922 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 19:58:48,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-15 19:58:48,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-15 19:58:48,983 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:58:48,984 INFO L376 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, 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] [2018-09-15 19:58:48,985 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:58:48,991 INFO L82 PathProgramCache]: Analyzing trace with hash 784010707, now seen corresponding path program 1 times [2018-09-15 19:58:48,993 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:58:48,994 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 64 with the following transitions: [2018-09-15 19:58:48,997 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-15 19:58:49,060 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:58:49,061 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:58:51,388 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:58:51,390 INFO L272 AbstractInterpreter]: Visited 62 different actions 62 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 19:58:51,403 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:58:52,220 INFO L232 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 73.66% of their original sizes. [2018-09-15 19:58:52,220 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:58:52,574 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:58:52,576 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:58:52,576 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 19:58:52,576 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:58:52,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 19:58:52,590 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 19:58:52,591 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 19:58:52,594 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-15 19:59:14,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:59:14,929 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-15 19:59:14,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 19:59:14,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2018-09-15 19:59:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:59:14,964 INFO L225 Difference]: With dead ends: 3044 [2018-09-15 19:59:14,964 INFO L226 Difference]: Without dead ends: 1922 [2018-09-15 19:59:14,979 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 19:59:15,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-15 19:59:15,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-15 19:59:15,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-15 19:59:15,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-15 19:59:15,156 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 63 [2018-09-15 19:59:15,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:59:15,157 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-15 19:59:15,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 19:59:15,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-15 19:59:15,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-09-15 19:59:15,171 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:59:15,172 INFO L376 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, 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] [2018-09-15 19:59:15,172 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:59:15,173 INFO L82 PathProgramCache]: Analyzing trace with hash 2033153536, now seen corresponding path program 1 times [2018-09-15 19:59:15,173 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:59:15,173 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-09-15 19:59:15,174 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-15 19:59:15,182 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:59:15,182 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:59:26,321 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:59:26,321 INFO L272 AbstractInterpreter]: Visited 108 different actions 210 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 19:59:26,335 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:59:29,326 INFO L232 lantSequenceWeakener]: Weakened 162 states. On average, predicates are now at 71.98% of their original sizes. [2018-09-15 19:59:29,327 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:59:29,946 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:59:29,946 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:59:29,946 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 19:59:29,946 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:59:29,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 19:59:29,948 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 19:59:29,948 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 19:59:29,949 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-15 20:00:32,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:00:32,995 INFO L93 Difference]: Finished difference Result 3839 states and 6442 transitions. [2018-09-15 20:00:32,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 20:00:32,997 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2018-09-15 20:00:32,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:00:33,014 INFO L225 Difference]: With dead ends: 3839 [2018-09-15 20:00:33,014 INFO L226 Difference]: Without dead ends: 2729 [2018-09-15 20:00:33,019 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 170 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-15 20:00:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2018-09-15 20:00:33,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2726. [2018-09-15 20:00:33,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-15 20:00:33,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3652 transitions. [2018-09-15 20:00:33,107 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3652 transitions. Word has length 164 [2018-09-15 20:00:33,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:00:33,108 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3652 transitions. [2018-09-15 20:00:33,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 20:00:33,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3652 transitions. [2018-09-15 20:00:33,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-09-15 20:00:33,112 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:00:33,113 INFO L376 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, 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] [2018-09-15 20:00:33,113 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:00:33,114 INFO L82 PathProgramCache]: Analyzing trace with hash 551156085, now seen corresponding path program 1 times [2018-09-15 20:00:33,114 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:00:33,114 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-09-15 20:00:33,114 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-15 20:00:33,121 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:00:33,121 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:00:43,746 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:00:43,747 INFO L272 AbstractInterpreter]: Visited 137 different actions 267 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 20:00:43,755 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:00:46,321 INFO L232 lantSequenceWeakener]: Weakened 191 states. On average, predicates are now at 71.8% of their original sizes. [2018-09-15 20:00:46,322 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:00:47,451 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:00:47,451 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:00:47,451 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 20:00:47,452 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:00:47,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 20:00:47,453 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 20:00:47,453 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 20:00:47,453 INFO L87 Difference]: Start difference. First operand 2726 states and 3652 transitions. Second operand 12 states. [2018-09-15 20:01:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:01:37,208 INFO L93 Difference]: Finished difference Result 5450 states and 8859 transitions. [2018-09-15 20:01:37,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 20:01:37,209 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 193 [2018-09-15 20:01:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:01:37,230 INFO L225 Difference]: With dead ends: 5450 [2018-09-15 20:01:37,231 INFO L226 Difference]: Without dead ends: 4340 [2018-09-15 20:01:37,236 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 200 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 20:01:37,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4340 states. [2018-09-15 20:01:37,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4340 to 4337. [2018-09-15 20:01:37,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4337 states. [2018-09-15 20:01:37,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4337 states to 4337 states and 5285 transitions. [2018-09-15 20:01:37,375 INFO L78 Accepts]: Start accepts. Automaton has 4337 states and 5285 transitions. Word has length 193 [2018-09-15 20:01:37,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:01:37,376 INFO L480 AbstractCegarLoop]: Abstraction has 4337 states and 5285 transitions. [2018-09-15 20:01:37,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 20:01:37,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4337 states and 5285 transitions. [2018-09-15 20:01:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-09-15 20:01:37,381 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:01:37,381 INFO L376 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, 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, 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] [2018-09-15 20:01:37,382 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:01:37,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1417163348, now seen corresponding path program 1 times [2018-09-15 20:01:37,382 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:01:37,383 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-09-15 20:01:37,383 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3815], [3819], [3823], [3827], [3831], [3835], [3839], [3843], [3847], [3851], [3862], [3865], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-15 20:01:37,395 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:01:37,395 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:01:49,875 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 20:02:03,501 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:02:03,501 INFO L272 AbstractInterpreter]: Visited 230 different actions 453 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 20:02:03,531 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:02:06,475 INFO L232 lantSequenceWeakener]: Weakened 284 states. On average, predicates are now at 71.48% of their original sizes. [2018-09-15 20:02:06,476 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:02:07,286 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:02:07,286 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:02:07,286 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 20:02:07,286 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:02:07,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 20:02:07,287 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 20:02:07,287 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-09-15 20:02:07,288 INFO L87 Difference]: Start difference. First operand 4337 states and 5285 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 20:02:47,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 20:02:47,473 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 20:02:47,480 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 20:02:47,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:02:47 BoogieIcfgContainer [2018-09-15 20:02:47,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 20:02:47,481 INFO L168 Benchmark]: Toolchain (without parser) took 254318.91 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -919.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-15 20:02:47,483 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 20:02:47,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2632.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-15 20:02:47,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 349.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 20:02:47,486 INFO L168 Benchmark]: Boogie Preprocessor took 1245.80 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-15 20:02:47,487 INFO L168 Benchmark]: RCFGBuilder took 11431.37 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 152.0 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 4.3 MB). Peak memory consumption was 743.6 MB. Max. memory is 7.1 GB. [2018-09-15 20:02:47,488 INFO L168 Benchmark]: TraceAbstraction took 238652.15 ms. Allocated memory was 2.7 GB in the beginning and 4.4 GB in the end (delta: 1.6 GB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 19.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-15 20:02:47,494 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2632.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 349.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1245.80 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11431.37 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 152.0 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 4.3 MB). Peak memory consumption was 743.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238652.15 ms. Allocated memory was 2.7 GB in the beginning and 4.4 GB in the end (delta: 1.6 GB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 19.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 180]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 180). Cancelled while BasicCegarLoop was constructing difference of abstraction (4337states) and FLOYD_HOARE automaton (currently 15 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (2594 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 238.5s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 175.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4113 SDtfs, 7742 SDslu, 2754 SDs, 0 SdLazy, 32861 SolverSat, 3558 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 163.5s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 726 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4337occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 50.3s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9952507487763894 AbsIntWeakeningRatio, 0.1111111111111111 AbsIntAvgWeakeningVarsNumRemoved, 344.2834757834758 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label34_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_20-02-47-508.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label34_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_20-02-47-508.csv Completed graceful shutdown