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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label06_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:32:22,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:32:22,725 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:32:22,743 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:32:22,743 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:32:22,746 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:32:22,747 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:32:22,750 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:32:22,752 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:32:22,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:32:22,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:32:22,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:32:22,758 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:32:22,759 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:32:22,760 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:32:22,763 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:32:22,764 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:32:22,774 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:32:22,780 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:32:22,782 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:32:22,783 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:32:22,786 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:32:22,789 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:32:22,790 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:32:22,790 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:32:22,794 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:32:22,795 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:32:22,796 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:32:22,797 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:32:22,800 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:32:22,800 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:32:22,801 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 04:32:22,805 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 04:32:22,832 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:32:22,832 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:32:22,833 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:32:22,833 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:32:22,833 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:32:22,836 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:32:22,837 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:32:22,837 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:32:22,837 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:32:22,837 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:32:22,838 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:32:22,838 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:32:22,839 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:32:22,839 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:32:22,841 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:32:22,841 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:32:22,841 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:32:22,841 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:32:22,842 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:32:22,842 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:32:22,842 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:32:22,842 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:32:22,844 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:32:22,844 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:32:22,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:32:22,845 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:32:22,845 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:32:22,845 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:32:22,845 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:32:22,845 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:32:22,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:32:22,846 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:32:22,846 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:32:22,846 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:32:22,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:32:22,933 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:32:22,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:32:22,941 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:32:22,941 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:32:22,942 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label06_true-unreach-call.c [2018-09-19 04:32:23,306 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d8f9a33d/2715a124f39c4c69a59010d35d954974/FLAG480c33d92 [2018-09-19 04:32:23,740 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:32:23,741 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label06_true-unreach-call.c [2018-09-19 04:32:23,769 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d8f9a33d/2715a124f39c4c69a59010d35d954974/FLAG480c33d92 [2018-09-19 04:32:23,793 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d8f9a33d/2715a124f39c4c69a59010d35d954974 [2018-09-19 04:32:23,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:32:23,809 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:32:23,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:32:23,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:32:23,821 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:32:23,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:32:23" (1/1) ... [2018-09-19 04:32:23,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359f2bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:23, skipping insertion in model container [2018-09-19 04:32:23,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:32:23" (1/1) ... [2018-09-19 04:32:23,838 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:32:24,943 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:32:24,964 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:32:25,329 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:32:25,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25 WrapperNode [2018-09-19 04:32:25,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:32:25,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:32:25,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:32:25,581 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:32:25,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (1/1) ... [2018-09-19 04:32:25,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (1/1) ... [2018-09-19 04:32:25,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:32:25,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:32:25,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:32:25,874 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:32:26,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (1/1) ... [2018-09-19 04:32:26,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (1/1) ... [2018-09-19 04:32:26,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (1/1) ... [2018-09-19 04:32:26,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (1/1) ... [2018-09-19 04:32:26,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (1/1) ... [2018-09-19 04:32:26,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (1/1) ... [2018-09-19 04:32:26,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (1/1) ... [2018-09-19 04:32:26,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:32:26,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:32:26,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:32:26,745 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:32:26,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (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 04:32:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:32:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:32:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:32:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:32:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:32:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:32:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:32:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:32:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:32:26,816 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:32:37,272 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:32:37,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:32:37 BoogieIcfgContainer [2018-09-19 04:32:37,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:32:37,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:32:37,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:32:37,280 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:32:37,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:32:23" (1/3) ... [2018-09-19 04:32:37,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105d4fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:32:37, skipping insertion in model container [2018-09-19 04:32:37,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:32:25" (2/3) ... [2018-09-19 04:32:37,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105d4fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:32:37, skipping insertion in model container [2018-09-19 04:32:37,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:32:37" (3/3) ... [2018-09-19 04:32:37,284 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label06_true-unreach-call.c [2018-09-19 04:32:37,294 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:32:37,304 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:32:37,386 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:32:37,387 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:32:37,387 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:32:37,388 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:32:37,388 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:32:37,388 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:32:37,388 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:32:37,388 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:32:37,388 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:32:37,437 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-19 04:32:37,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-19 04:32:37,446 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:32:37,447 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] [2018-09-19 04:32:37,448 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:32:37,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2116554596, now seen corresponding path program 1 times [2018-09-19 04:32:37,455 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:32:37,456 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-09-19 04:32:37,459 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-19 04:32:37,526 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:32:37,527 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:32:39,049 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:32:39,051 INFO L272 AbstractInterpreter]: Visited 37 different actions 37 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 04:32:39,077 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:32:39,635 INFO L232 lantSequenceWeakener]: Weakened 36 states. On average, predicates are now at 77.21% of their original sizes. [2018-09-19 04:32:39,635 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:32:39,924 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:32:39,925 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:32:39,926 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:32:39,926 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:32:39,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:32:39,938 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:32:39,939 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:32:39,942 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-19 04:32:57,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:32:57,920 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-19 04:32:57,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:32:57,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-09-19 04:32:57,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:32:57,945 INFO L225 Difference]: With dead ends: 1642 [2018-09-19 04:32:57,945 INFO L226 Difference]: Without dead ends: 1036 [2018-09-19 04:32:57,957 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 37 GetRequests, 33 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 04:32:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-19 04:32:58,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-19 04:32:58,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-19 04:32:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-19 04:32:58,082 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 38 [2018-09-19 04:32:58,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:32:58,082 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-19 04:32:58,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:32:58,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-19 04:32:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-09-19 04:32:58,088 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:32:58,089 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:58,089 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:32:58,089 INFO L82 PathProgramCache]: Analyzing trace with hash -493194566, now seen corresponding path program 1 times [2018-09-19 04:32:58,090 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:32:58,090 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-09-19 04:32:58,090 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:32:58,099 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:32:58,099 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:33:00,334 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:33:06,776 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:33:06,777 INFO L272 AbstractInterpreter]: Visited 82 different actions 233 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 04:33:06,785 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:33:08,018 INFO L232 lantSequenceWeakener]: Weakened 111 states. On average, predicates are now at 75.79% of their original sizes. [2018-09-19 04:33:08,019 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:33:09,202 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:33:09,202 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:33:09,202 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:33:09,202 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:33:09,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:33:09,204 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:33:09,204 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:33:09,204 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 13 states. [2018-09-19 04:33:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:33:38,218 INFO L93 Difference]: Finished difference Result 2814 states and 4895 transitions. [2018-09-19 04:33:38,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 04:33:38,226 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 113 [2018-09-19 04:33:38,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:33:38,238 INFO L225 Difference]: With dead ends: 2814 [2018-09-19 04:33:38,239 INFO L226 Difference]: Without dead ends: 2220 [2018-09-19 04:33:38,244 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 126 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:33:38,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2018-09-19 04:33:38,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1497. [2018-09-19 04:33:38,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2018-09-19 04:33:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2009 transitions. [2018-09-19 04:33:38,319 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2009 transitions. Word has length 113 [2018-09-19 04:33:38,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:33:38,320 INFO L480 AbstractCegarLoop]: Abstraction has 1497 states and 2009 transitions. [2018-09-19 04:33:38,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:33:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2009 transitions. [2018-09-19 04:33:38,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-19 04:33:38,334 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:33:38,334 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:33:38,335 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:33:38,335 INFO L82 PathProgramCache]: Analyzing trace with hash -649908078, now seen corresponding path program 1 times [2018-09-19 04:33:38,336 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:33:38,336 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-09-19 04:33:38,336 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:33:38,345 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:33:38,346 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:33:40,688 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:33:46,050 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:33:46,050 INFO L272 AbstractInterpreter]: Visited 95 different actions 272 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 04:33:46,065 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:33:47,124 INFO L232 lantSequenceWeakener]: Weakened 124 states. On average, predicates are now at 75.71% of their original sizes. [2018-09-19 04:33:47,125 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:33:47,854 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:33:47,854 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:33:47,855 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:33:47,855 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:33:47,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:33:47,856 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:33:47,856 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:33:47,856 INFO L87 Difference]: Start difference. First operand 1497 states and 2009 transitions. Second operand 11 states. [2018-09-19 04:34:23,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:34:23,640 INFO L93 Difference]: Finished difference Result 2646 states and 4140 transitions. [2018-09-19 04:34:23,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:34:23,644 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 126 [2018-09-19 04:34:23,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:34:23,657 INFO L225 Difference]: With dead ends: 2646 [2018-09-19 04:34:23,657 INFO L226 Difference]: Without dead ends: 2052 [2018-09-19 04:34:23,660 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:34:23,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2018-09-19 04:34:23,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 1962. [2018-09-19 04:34:23,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2018-09-19 04:34:23,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2620 transitions. [2018-09-19 04:34:23,729 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2620 transitions. Word has length 126 [2018-09-19 04:34:23,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:34:23,730 INFO L480 AbstractCegarLoop]: Abstraction has 1962 states and 2620 transitions. [2018-09-19 04:34:23,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:34:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2620 transitions. [2018-09-19 04:34:23,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-09-19 04:34:23,743 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:34:23,746 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, 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] [2018-09-19 04:34:23,746 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:34:23,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1098957288, now seen corresponding path program 1 times [2018-09-19 04:34:23,747 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:34:23,747 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-09-19 04:34:23,748 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:34:23,755 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:34:23,756 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:34:25,743 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:34:39,961 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:34:39,961 INFO L272 AbstractInterpreter]: Visited 96 different actions 558 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 04:34:39,971 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:34:41,504 INFO L232 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 75.49% of their original sizes. [2018-09-19 04:34:41,505 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:34:41,929 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:34:41,929 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:34:41,929 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 04:34:41,929 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:34:41,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 04:34:41,930 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 04:34:41,930 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 04:34:41,931 INFO L87 Difference]: Start difference. First operand 1962 states and 2620 transitions. Second operand 12 states. [2018-09-19 04:35:26,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:35:26,667 INFO L93 Difference]: Finished difference Result 3982 states and 6007 transitions. [2018-09-19 04:35:26,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 04:35:26,671 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 201 [2018-09-19 04:35:26,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:35:26,688 INFO L225 Difference]: With dead ends: 3982 [2018-09-19 04:35:26,689 INFO L226 Difference]: Without dead ends: 3388 [2018-09-19 04:35:26,692 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 210 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 04:35:26,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2018-09-19 04:35:26,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 2433. [2018-09-19 04:35:26,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2433 states. [2018-09-19 04:35:26,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3279 transitions. [2018-09-19 04:35:26,773 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3279 transitions. Word has length 201 [2018-09-19 04:35:26,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:35:26,774 INFO L480 AbstractCegarLoop]: Abstraction has 2433 states and 3279 transitions. [2018-09-19 04:35:26,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 04:35:26,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3279 transitions. [2018-09-19 04:35:26,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-09-19 04:35:26,778 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:35:26,778 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, 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] [2018-09-19 04:35:26,779 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:35:26,779 INFO L82 PathProgramCache]: Analyzing trace with hash 5058136, now seen corresponding path program 1 times [2018-09-19 04:35:26,779 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:35:26,779 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-09-19 04:35:26,780 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:35:26,783 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:35:26,784 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:35:28,652 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:35:43,361 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:35:43,361 INFO L272 AbstractInterpreter]: Visited 96 different actions 461 times. Merged at 7 different actions 25 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 04:35:43,366 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:35:45,060 INFO L232 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 75.48% of their original sizes. [2018-09-19 04:35:45,060 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:35:45,406 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:35:45,406 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:35:45,406 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:35:45,406 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:35:45,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:35:45,407 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:35:45,407 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:35:45,408 INFO L87 Difference]: Start difference. First operand 2433 states and 3279 transitions. Second operand 11 states. [2018-09-19 04:36:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:36:15,310 INFO L93 Difference]: Finished difference Result 4146 states and 6156 transitions. [2018-09-19 04:36:15,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:36:15,311 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2018-09-19 04:36:15,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:36:15,326 INFO L225 Difference]: With dead ends: 4146 [2018-09-19 04:36:15,326 INFO L226 Difference]: Without dead ends: 3552 [2018-09-19 04:36:15,329 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 210 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:36:15,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2018-09-19 04:36:15,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3371. [2018-09-19 04:36:15,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3371 states. [2018-09-19 04:36:15,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4576 transitions. [2018-09-19 04:36:15,422 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4576 transitions. Word has length 202 [2018-09-19 04:36:15,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:36:15,422 INFO L480 AbstractCegarLoop]: Abstraction has 3371 states and 4576 transitions. [2018-09-19 04:36:15,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:36:15,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4576 transitions. [2018-09-19 04:36:15,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-09-19 04:36:15,426 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:36:15,427 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, 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] [2018-09-19 04:36:15,427 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:36:15,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1944742856, now seen corresponding path program 1 times [2018-09-19 04:36:15,427 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:36:15,428 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 204 with the following transitions: [2018-09-19 04:36:15,428 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1231], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:36:15,431 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:36:15,431 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:36:17,596 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:36:25,041 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:36:25,041 INFO L272 AbstractInterpreter]: Visited 96 different actions 371 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 04:36:25,049 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:36:26,275 INFO L232 lantSequenceWeakener]: Weakened 201 states. On average, predicates are now at 75.48% of their original sizes. [2018-09-19 04:36:26,275 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:36:26,678 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:36:26,679 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:36:26,679 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:36:26,679 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:36:26,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:36:26,679 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:36:26,679 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:36:26,680 INFO L87 Difference]: Start difference. First operand 3371 states and 4576 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 04:36:36,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 04:36:36,408 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:36:36,414 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:36:36,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:36:36 BoogieIcfgContainer [2018-09-19 04:36:36,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:36:36,416 INFO L168 Benchmark]: Toolchain (without parser) took 252609.35 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 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-19 04:36:36,418 INFO L168 Benchmark]: CDTParser took 0.25 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 04:36:36,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1769.48 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-19 04:36:36,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 293.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. [2018-09-19 04:36:36,420 INFO L168 Benchmark]: Boogie Preprocessor took 869.91 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 932.7 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 123.6 MB. Max. memory is 7.1 GB. [2018-09-19 04:36:36,421 INFO L168 Benchmark]: RCFGBuilder took 10529.20 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 457.4 MB). Peak memory consumption was 457.4 MB. Max. memory is 7.1 GB. [2018-09-19 04:36:36,422 INFO L168 Benchmark]: TraceAbstraction took 239140.83 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -909.5 MB). Peak memory consumption was 903.0 MB. Max. memory is 7.1 GB. [2018-09-19 04:36:36,431 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1769.48 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 293.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 869.91 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 932.7 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 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10529.20 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 457.4 MB). Peak memory consumption was 457.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239140.83 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -909.5 MB). Peak memory consumption was 903.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 101). Cancelled while BasicCegarLoop was constructing difference of abstraction (3371states) and FLOYD_HOARE automaton (currently 15 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (1845 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 239.0s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 167.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2972 SDtfs, 15877 SDslu, 3555 SDs, 0 SdLazy, 34331 SolverSat, 2890 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 154.4s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 928 GetRequests, 825 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3371occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 60.4s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9933618396047128 AbsIntWeakeningRatio, 0.1573546180159635 AbsIntAvgWeakeningVarsNumRemoved, 1063.9566704675028 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 1951 StatesRemovedByMinimization, 5 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/Problem17_label06_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-36-36-457.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label06_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-36-36-457.csv Completed graceful shutdown