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/Problem12_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:25:01,516 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:25:01,519 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:25:01,532 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:25:01,532 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:25:01,533 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:25:01,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:25:01,536 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:25:01,542 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:25:01,543 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:25:01,544 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:25:01,544 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:25:01,545 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:25:01,546 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:25:01,547 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:25:01,548 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:25:01,549 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:25:01,551 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:25:01,553 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:25:01,555 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:25:01,556 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:25:01,557 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:25:01,560 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:25:01,560 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:25:01,560 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:25:01,561 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:25:01,562 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:25:01,563 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:25:01,564 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:25:01,565 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:25:01,565 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:25:01,566 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 10:25:01,569 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 [2018-09-19 10:25:01,591 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:25:01,591 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:25:01,592 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:25:01,592 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:25:01,593 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:25:01,593 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:25:01,593 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:25:01,593 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:25:01,593 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:25:01,594 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:25:01,594 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:25:01,594 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:25:01,594 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:25:01,595 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:25:01,595 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:25:01,596 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:25:01,597 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:25:01,597 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:25:01,597 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:25:01,597 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:25:01,597 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:25:01,598 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:25:01,598 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:25:01,598 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:25:01,598 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:25:01,599 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:25:01,599 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:25:01,599 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:25:01,599 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:25:01,600 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:25:01,600 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:25:01,600 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:25:01,600 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:25:01,600 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:25:01,601 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:25:01,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:25:01,692 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:25:01,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:25:01,701 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:25:01,702 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:25:01,703 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c [2018-09-19 10:25:02,046 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17deb770c/5836175a9756464cb0df150116c188c8/FLAG539ac10c8 [2018-09-19 10:25:02,497 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:25:02,498 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c [2018-09-19 10:25:02,535 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17deb770c/5836175a9756464cb0df150116c188c8/FLAG539ac10c8 [2018-09-19 10:25:02,559 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17deb770c/5836175a9756464cb0df150116c188c8 [2018-09-19 10:25:02,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:25:02,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:25:02,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:25:02,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:25:02,591 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:25:02,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:25:02" (1/1) ... [2018-09-19 10:25:02,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77eb0580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:02, skipping insertion in model container [2018-09-19 10:25:02,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:25:02" (1/1) ... [2018-09-19 10:25:02,610 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:25:04,001 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:25:04,023 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:25:04,658 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:25:04,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04 WrapperNode [2018-09-19 10:25:04,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:25:04,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:25:04,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:25:04,924 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:25:04,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (1/1) ... [2018-09-19 10:25:05,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (1/1) ... [2018-09-19 10:25:05,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:25:05,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:25:05,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:25:05,734 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:25:05,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (1/1) ... [2018-09-19 10:25:05,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (1/1) ... [2018-09-19 10:25:05,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (1/1) ... [2018-09-19 10:25:05,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (1/1) ... [2018-09-19 10:25:05,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (1/1) ... [2018-09-19 10:25:05,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (1/1) ... [2018-09-19 10:25:06,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (1/1) ... [2018-09-19 10:25:06,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:25:06,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:25:06,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:25:06,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:25:06,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (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 [2018-09-19 10:25:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:25:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:25:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 10:25:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 10:25:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 10:25:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 10:25:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:25:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:25:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:25:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:25:06,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:25:06,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:25:06,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:25:06,196 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:25:17,824 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:25:17,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:25:17 BoogieIcfgContainer [2018-09-19 10:25:17,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:25:17,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:25:17,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:25:17,830 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:25:17,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:25:02" (1/3) ... [2018-09-19 10:25:17,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125cf986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:25:17, skipping insertion in model container [2018-09-19 10:25:17,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:25:04" (2/3) ... [2018-09-19 10:25:17,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125cf986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:25:17, skipping insertion in model container [2018-09-19 10:25:17,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:25:17" (3/3) ... [2018-09-19 10:25:17,834 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label47_true-unreach-call.c [2018-09-19 10:25:17,845 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:25:17,856 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:25:17,925 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:25:17,926 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:25:17,926 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:25:17,927 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:25:17,927 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:25:17,927 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:25:17,927 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:25:17,927 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:25:17,927 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:25:17,970 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-19 10:25:17,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-19 10:25:17,984 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:25:17,985 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] [2018-09-19 10:25:17,987 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:25:17,993 INFO L82 PathProgramCache]: Analyzing trace with hash 986841587, now seen corresponding path program 1 times [2018-09-19 10:25:17,995 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:25:17,996 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2018-09-19 10:25:17,999 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-19 10:25:18,058 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:25:18,058 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:25:19,651 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:25:19,653 INFO L272 AbstractInterpreter]: Visited 44 different actions 44 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 10:25:19,671 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:25:20,355 INFO L232 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 77.53% of their original sizes. [2018-09-19 10:25:20,355 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:25:20,658 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:25:20,660 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:25:20,660 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:25:20,661 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:25:20,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:25:20,675 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:25:20,675 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:25:20,678 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-19 10:25:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:25:40,956 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-19 10:25:40,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:25:40,960 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-09-19 10:25:40,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:25:41,036 INFO L225 Difference]: With dead ends: 2448 [2018-09-19 10:25:41,036 INFO L226 Difference]: Without dead ends: 1606 [2018-09-19 10:25:41,052 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:25:41,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-19 10:25:41,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-19 10:25:41,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-19 10:25:41,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-19 10:25:41,222 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 45 [2018-09-19 10:25:41,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:25:41,223 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-19 10:25:41,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:25:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-19 10:25:41,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-09-19 10:25:41,230 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:25:41,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:25:41,231 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:25:41,231 INFO L82 PathProgramCache]: Analyzing trace with hash -694932976, now seen corresponding path program 1 times [2018-09-19 10:25:41,231 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:25:41,232 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 122 with the following transitions: [2018-09-19 10:25:41,232 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:25:41,239 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:25:41,239 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:25:46,824 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:25:46,824 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:25:46,852 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:25:47,932 INFO L232 lantSequenceWeakener]: Weakened 119 states. On average, predicates are now at 75.99% of their original sizes. [2018-09-19 10:25:47,933 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:25:48,604 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:25:48,605 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:25:48,605 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:25:48,605 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:25:48,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:25:48,607 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:25:48,608 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:25:48,608 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 13 states. [2018-09-19 10:26:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:26:33,705 INFO L93 Difference]: Finished difference Result 4255 states and 7538 transitions. [2018-09-19 10:26:33,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:26:33,708 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 121 [2018-09-19 10:26:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:26:33,725 INFO L225 Difference]: With dead ends: 4255 [2018-09-19 10:26:33,725 INFO L226 Difference]: Without dead ends: 3425 [2018-09-19 10:26:33,730 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 132 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2018-09-19 10:26:33,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2018-09-19 10:26:33,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 3174. [2018-09-19 10:26:33,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3174 states. [2018-09-19 10:26:33,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 3953 transitions. [2018-09-19 10:26:33,844 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 3953 transitions. Word has length 121 [2018-09-19 10:26:33,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:26:33,845 INFO L480 AbstractCegarLoop]: Abstraction has 3174 states and 3953 transitions. [2018-09-19 10:26:33,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:26:33,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 3953 transitions. [2018-09-19 10:26:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-09-19 10:26:33,858 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:26:33,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:26:33,859 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:26:33,859 INFO L82 PathProgramCache]: Analyzing trace with hash 523780604, now seen corresponding path program 1 times [2018-09-19 10:26:33,860 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:26:33,860 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 192 with the following transitions: [2018-09-19 10:26:33,860 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:26:33,870 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:26:33,870 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:26:39,278 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:26:50,783 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:26:50,784 INFO L272 AbstractInterpreter]: Visited 153 different actions 446 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:26:50,789 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:26:52,207 INFO L232 lantSequenceWeakener]: Weakened 189 states. On average, predicates are now at 75.62% of their original sizes. [2018-09-19 10:26:52,207 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:26:53,369 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:26:53,370 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:26:53,370 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:26:53,370 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:26:53,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:26:53,371 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:26:53,372 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:26:53,372 INFO L87 Difference]: Start difference. First operand 3174 states and 3953 transitions. Second operand 12 states. [2018-09-19 10:27:34,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:27:34,008 INFO L93 Difference]: Finished difference Result 4779 states and 7054 transitions. [2018-09-19 10:27:34,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:27:34,020 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 191 [2018-09-19 10:27:34,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:27:34,043 INFO L225 Difference]: With dead ends: 4779 [2018-09-19 10:27:34,044 INFO L226 Difference]: Without dead ends: 3949 [2018-09-19 10:27:34,047 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 201 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2018-09-19 10:27:34,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2018-09-19 10:27:34,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3944. [2018-09-19 10:27:34,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2018-09-19 10:27:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 4738 transitions. [2018-09-19 10:27:34,158 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 4738 transitions. Word has length 191 [2018-09-19 10:27:34,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:27:34,159 INFO L480 AbstractCegarLoop]: Abstraction has 3944 states and 4738 transitions. [2018-09-19 10:27:34,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:27:34,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 4738 transitions. [2018-09-19 10:27:34,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-09-19 10:27:34,163 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:27:34,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:27:34,163 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:27:34,164 INFO L82 PathProgramCache]: Analyzing trace with hash 2048855108, now seen corresponding path program 1 times [2018-09-19 10:27:34,164 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:27:34,164 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-09-19 10:27:34,165 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:27:34,182 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:27:34,182 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:27:39,606 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:27:51,740 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:27:51,740 INFO L272 AbstractInterpreter]: Visited 157 different actions 458 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:27:51,745 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:27:52,985 INFO L232 lantSequenceWeakener]: Weakened 193 states. On average, predicates are now at 75.61% of their original sizes. [2018-09-19 10:27:52,985 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:27:53,606 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:27:53,606 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:27:53,606 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:27:53,606 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:27:53,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:27:53,607 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:27:53,607 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:27:53,608 INFO L87 Difference]: Start difference. First operand 3944 states and 4738 transitions. Second operand 14 states. [2018-09-19 10:28:25,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:28:25,086 INFO L93 Difference]: Finished difference Result 5650 states and 8039 transitions. [2018-09-19 10:28:25,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:28:25,087 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 195 [2018-09-19 10:28:25,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:28:25,111 INFO L225 Difference]: With dead ends: 5650 [2018-09-19 10:28:25,111 INFO L226 Difference]: Without dead ends: 4820 [2018-09-19 10:28:25,116 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 207 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-09-19 10:28:25,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4820 states. [2018-09-19 10:28:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4820 to 4718. [2018-09-19 10:28:25,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4718 states. [2018-09-19 10:28:25,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4718 states to 4718 states and 5552 transitions. [2018-09-19 10:28:25,248 INFO L78 Accepts]: Start accepts. Automaton has 4718 states and 5552 transitions. Word has length 195 [2018-09-19 10:28:25,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:28:25,249 INFO L480 AbstractCegarLoop]: Abstraction has 4718 states and 5552 transitions. [2018-09-19 10:28:25,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:28:25,249 INFO L276 IsEmpty]: Start isEmpty. Operand 4718 states and 5552 transitions. [2018-09-19 10:28:25,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-09-19 10:28:25,255 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:28:25,255 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:28:25,255 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:28:25,256 INFO L82 PathProgramCache]: Analyzing trace with hash -2008896295, now seen corresponding path program 1 times [2018-09-19 10:28:25,256 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:28:25,256 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 268 with the following transitions: [2018-09-19 10:28:25,259 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:28:25,270 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:28:25,270 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:28:32,338 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:28:48,753 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:28:48,753 INFO L272 AbstractInterpreter]: Visited 154 different actions 606 times. Merged at 7 different actions 23 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 10:28:48,759 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:28:50,252 INFO L232 lantSequenceWeakener]: Weakened 265 states. On average, predicates are now at 75.47% of their original sizes. [2018-09-19 10:28:50,253 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:28:50,850 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:28:50,851 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:28:50,851 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-19 10:28:50,851 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:28:50,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-19 10:28:50,852 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-19 10:28:50,853 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-19 10:28:50,853 INFO L87 Difference]: Start difference. First operand 4718 states and 5552 transitions. Second operand 15 states. Received shutdown request... [2018-09-19 10:29:17,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 10:29:17,019 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:29:17,026 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:29:17,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:29:17 BoogieIcfgContainer [2018-09-19 10:29:17,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:29:17,027 INFO L168 Benchmark]: Toolchain (without parser) took 254453.79 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -209.9 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-19 10:29:17,029 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-09-19 10:29:17,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2341.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-19 10:29:17,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 809.85 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 913.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.2 MB. Max. memory is 7.1 GB. [2018-09-19 10:29:17,033 INFO L168 Benchmark]: Boogie Preprocessor took 375.38 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 7.1 GB. [2018-09-19 10:29:17,034 INFO L168 Benchmark]: RCFGBuilder took 11716.10 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 652.5 MB). Peak memory consumption was 652.5 MB. Max. memory is 7.1 GB. [2018-09-19 10:29:17,034 INFO L168 Benchmark]: TraceAbstraction took 239200.12 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 19.1 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-19 10:29:17,040 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 2341.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 809.85 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 913.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 375.38 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11716.10 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 652.5 MB). Peak memory consumption was 652.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239200.12 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 19.1 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 126). Cancelled while BasicCegarLoop was constructing difference of abstraction (4718states) and FLOYD_HOARE automaton (currently 25 states, 15 states before enhancement), while ReachableStatesComputation was computing reachable states (4040 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 239.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 163.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3687 SDtfs, 16692 SDslu, 1882 SDs, 0 SdLazy, 41501 SolverSat, 4797 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 148.5s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 867 GetRequests, 764 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4718occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 65.3s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.994520727020727 AbsIntWeakeningRatio, 0.128992628992629 AbsIntAvgWeakeningVarsNumRemoved, 1052.8439803439803 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 360 StatesRemovedByMinimization, 4 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/Problem12_label47_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-29-17-056.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label47_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-29-17-056.csv Completed graceful shutdown